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Heart|Natural|GIA

0.31ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 2197496507

Certificate GIA 2197496507

Diamond specifications and retailer prices

From $767 AUD
$539 USD
As of November 1, 2026
Save $376 AUD (33%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,774 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 0.31ct natural heart diamond

This 0.31ct natural heart sits in the sub-half-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 2197496507. Listed at 12 retailers as of November 1, 2026, with a 49% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.31
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2197496507
Dimensions4.64 × 4.33 × 2.58 mm
L/W Ratio1.07
Key to symbols
Feather
Top View
4.64 mm4.33 mm0.31 ctD / SI2
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 2197496507
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 55.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,774 AUD|Low: $767 AUD|High: $2,407 AUD|Avg: $1,162 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 9$767 AUD
Retailer 5$827 AUD
Retailer 6$827 AUD
Retailer 7$856 AUD
Retailer 8$885 AUD
Retailer 3$969 AUD
Retailer 4$1,052 AUD
Retailer 2$1,144 AUD
MOH London$1,774 AUD
Retailer 10$2,407 AUD

43 data points across 10 retailers

12 retailers$767 AUD to $1,144 AUD

B+
Cheapest Retailer
-
$767 AUD
$539 USD
B
Retailer 2
-
$827 AUD
$581 USD
View
B
Retailer 3
-
$827 AUD
$581 USD
View
Retailer 4
-
$885 AUD
$622 USD
View
Price last confirmed 56 days ago
B
Retailer 5
-
$885 AUD
$622 USD
View
B
Retailer 6
-
$885 AUD
$622 USD
View
B
Retailer 7
-
$955 AUD
$671 USD
View
B
Retailer 8
-
$969 AUD
£536 GBP
View
B
Retailer 9
-
$1,052 AUD
£582 GBP
View
B
Retailer 10
-
$1,144 AUD
€765 EUR
View
Most Expensive
MOH London
224DF0E8C · Nov 1
$1,774 AUD
£981 GBP
View
Price under review
10 more retailers have this diamond
Prices start from $767 AUDSave up to $376 AUD

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+
0.31ct Heart
$767 AUD