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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 £234 GBP
SGD 423 SGD
As of November 1, 2026
Save £77 GBP (25%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £310 GBP at 77 Diamonds · As of November 1, 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 3 retailers as of November 1, 2026, with prices from £234 to £310, a £77 spread on the same certified stone. 77 Diamonds lists it at £310. 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

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £310 GBP|Low: £234 GBP|High: £313 GBP|Avg: £283 GBP|-0.8%
77 Diamonds
Retailer 2
Retailer 3
November 1, 2026
Retailer 3£234 GBP
Retailer 2£304 GBP
77 Diamonds£310 GBP

2 data points across 3 retailers

3 retailers£234 GBP to £310 GBP

A
Cheapest Retailer
-
£234 GBP
SGD 423 SGD
B
Retailer 2
-
£304 GBP
$407 USD
View
Most Expensive
B
77 Diamonds
HSPUIFSWARTDWXV · Nov 1
£310 GBP
View
2 more retailers have this diamond
Prices start from £234 GBPSave up to £77 GBP

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
£234 GBP