3.11ct Fancy Dark Brown Greenish Yellow SI1 Chameleon Diamond GIA 5234100586
At a glance
This 3.11 ct heart-shaped natural diamond combines a Fancy Dark Brown-Greenish Yellow colour grade with the temporary colour-change behaviour known as chameleon. Its distinctive outline and unusual colour response offer collectors and bespoke jewellery buyers several details to explore at a private viewing.
Gem details
| Gemstone | Natural diamond |
|---|---|
| Gemstone weight | 3.11 ct |
| Shape and cutting style | Heart Modified Brilliant |
| Measurements (GIA) | 8.50 × 9.67 × 5.14 mm |
| Colour grade (GIA) | Fancy Dark Brown-Greenish Yellow |
| Colour origin (GIA) | Natural |
| Colour distribution (GIA) | Even |
| Clarity grade (GIA) | SI1 |
| Polish / symmetry (GIA) | Excellent / Excellent |
| Fluorescence (GIA) | Strong Yellow |
| Laboratory report | GIA Natural Colored Diamond Report — Grading Report |
| Report date | 26 October 2023 |
| GIA report number | 5234100586 |
A gemologist's note
GIA report 5234100586 records that this stone temporarily changes colour following gentle heating or a period in darkness, a behaviour known in the trade as chameleon. Chameleon diamonds return towards their usual colour after the conditions change; the strength and timing of the effect depend on the stone and viewing conditions.
Ask our team about observing this piece after storage in darkness, alongside its usual appearance. Any demonstration should be handled by our gemological team. The SI1 clarity grade, heart outline and facet reflections are also worth examining together. Read GIA's research on chameleon diamonds.
What to explore in person
- Compare its brown, greenish and yellow appearance under different lighting.
- Ask about a demonstration following storage in darkness and the time needed to observe it.
- Examine the heart outline and SI1 clarity characteristics, then discuss a suitable jewellery design or place in your collection.
See it in Singapore
Enquire about this 3.11 ct natural chameleon diamond and arrange a private viewing by appointment in Singapore. We can confirm availability, explain the GIA report and discuss its colour behaviour and possible jewellery designs before you decide.