Heart|Natural|GIA

5.12ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 6381532044

Certificate GIA 6381532044

Diamond specifications and retailer prices

From $117,292 USD
A$180,449 AUD
As of November 1, 2026
Save $10,260 USD (8%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $127,552 USD at Adiamor · As of November 1, 2026
View at Adiamor

About this 5.12ct natural heart diamond

This 5.12ct natural heart sits in the over five carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6381532044. Listed at 3 retailers as of November 1, 2026, with a relatively tight 9% spread, which is unusual at this carat range and suggests competitive pricing across the listings. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

5.12
Carat
D
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6381532044
Dimensions10.48 × 12.12 × 6.74 mm
L/W Ratio1.16
Top View
10.48 mm12.12 mm5.12 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6381532044
Side View
Table 59.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 55.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: $127,552 USD|Low: $104,013 USD|High: $145,247 USD|Avg: $124,921 USD|-12.2%
Adiamor
Retailer 2
Retailer 3
October 11, 2026
Retailer 2$104,013 USD
Retailer 3$120,436 USD
Adiamor$127,552 USD

4 data points across 3 retailers

3 retailers$117,292 USD to $127,552 USD

Retailer 1
-
$104,013 USD
HK$812,600 HKD
Price last confirmed 7 days ago
B
Retailer 2
-
$117,292 USD
A$180,449 AUD
View
Most Expensive
B
Adiamor
D-81493025 · Nov 1
$127,552 USD
View
2 more retailers have this diamond
Prices start from $117,292 USDSave up to $10,260 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
5.12ct Heart
$117,292 USD