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Heart|Natural|GIA

2.31ct K SI2 Heart Natural Diamond

ID • K/SI2 • GIA 1388709015

Certificate GIA 1388709015

Diamond specifications and retailer prices

From $6,528 USD
As of November 6, 2026
Save $3,621 USD (36%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $10,149 USD at MOH London · As of November 7, 2026
View at MOH London

About this 2.31ct natural heart diamond

This 2.31ct natural heart sits in the two to three carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1388709015. Listed at 5 retailers as of November 6, 2026, with prices from $6,528 to $10,149, a $3,621 spread on the same certified stone. MOH London lists it at $10,149. 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

2.31
Carat
K
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1388709015
Dimensions9.22 × 5.49 × 7.64 mm
L/W Ratio1.68
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Natural
Top View
9.22 mm5.49 mm2.31 ctK / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1388709015
Side View
Table 56.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 59.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $10,149 USD|Low: $6,060 USD|High: $12,307 USD|Avg: $8,508 USD|-6.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 7$6,060 USD
Retailer 4$6,528 USD
Retailer 2$7,100 USD
Retailer 5$7,287 USD
Retailer 3$7,955 USD
Retailer 6$8,614 USD
MOH London$10,149 USD
Retailer 8$12,307 USD

27 data points across 8 retailers

5 retailers$6,528 USD to $10,149 USD

A
Cheapest Retailer
-
$6,528 USD
B+
Retailer 2
-
$7,100 USD
View
B+
Retailer 3
-
$7,287 USD
View
B+
Retailer 4
-
$7,955 USD
View
Most Expensive
B+
MOH London
52364E8E5 · Nov 7
$10,149 USD
£7,991 GBP
View
4 more retailers have this diamond
Prices start from $6,528 USDSave up to $3,621 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.

A
2.31ct Heart
$6,528 USD