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Heart|Natural|GIA

0.31ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 2566612958

Certificate GIA 2566612958

Diamond specifications and retailer prices

From $447 AUD
SGD 423 SGD
As of November 1, 2026
Save $152 AUD (25%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $598 AUD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.31ct natural heart diamond

This 0.31ct natural heart sits in the sub-half-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566612958. Listed at 4 retailers as of November 1, 2026, with prices from $447 to $598, a $152 spread on the same certified stone. 77 Diamonds lists it at $598. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.78°
Pavilion angle38.48°
OriginNatural
Grading LabGIA
CertificateGIA 2566612958
Dimensions4.11 × 4.68 × 2.78 mm
L/W Ratio1.14
Culet sizeNone
Top View
4.11 mm4.68 mm0.31 ctG / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566612958
Side View
Table 57.0%Crown 34.78°Girdle: MED-VTKPavilion 38.48°Culet: NoneDepth 59.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $598 AUD|Low: $447 AUD|High: $598 AUD|Avg: $545 AUD
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 4$447 AUD
Retailer 2$574 AUD
Retailer 3$581 AUD
77 Diamonds$598 AUD

3 data points across 4 retailers

4 retailers$447 AUD to $598 AUD

A
Cheapest Retailer
-
$447 AUD
SGD 423 SGD
B+
Retailer 2
-
$574 AUD
£317 GBP
View
B
Retailer 3
-
$581 AUD
$407 USD
View
Most Expensive
B+
77 Diamonds
HSPUIFSWARTDWXV · Nov 2
$598 AUD
£330 GBP
View
3 more retailers have this diamond
Prices start from $447 AUDSave up to $152 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.

A
0.31ct Heart
$447 AUD