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Heart|Natural|GIA

0.31ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 7566130672

Certificate GIA 7566130672

Diamond specifications and retailer prices

From £246 GBP
$330 USD
As of November 2, 2026
Save £144 GBP (37%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £390 GBP at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7566130672. Listed at 8 retailers as of October 27, 2026, with prices from £246 to £390, a £144 spread on the same certified stone. Wholesale Diamonds Direct lists it at £390. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.16°
Pavilion angle40.62°
OriginNatural
Grading LabGIA
CertificateGIA 7566130672
Dimensions4.05 × 4.72 × 2.81 mm
L/W Ratio1.17
Culet sizeNone
Top View
4.05 mm4.72 mm0.31 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7566130672
Side View
Table 59.0%Crown 36.16°Girdle: MED-THKPavilion 40.62°Culet: NoneDepth 59.6%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: £351 GBP|Low: £174 GBP|High: £421 GBP|Avg: £312 GBP|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
November 2, 2026
Retailer 8£174 GBP
Retailer 4£246 GBP
Retailer 7£262 GBP
Retailer 6£294 GBP
Retailer 5£306 GBP
Retailer 3£338 GBP
Retailer 2£342 GBP
Retailer 1£351 GBP
Wholesale Diamonds Direct£390 GBP

37 data points across 9 retailers

8 retailers£246 GBP to £390 GBP

A
Cheapest Retailer
-
£246 GBP
$330 USD
A
Retailer 2
-
£262 GBP
SGD 476 SGD
View
B+
Retailer 3
-
£294 GBP
SGD 534 SGD
View
B+
Retailer 4
-
£306 GBP
$410 USD
View
B
Retailer 5
-
£338 GBP
View
B
Retailer 6
-
£342 GBP
$459 USD
View
B+
Retailer 7
-
£351 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
545794715 · Oct 27
£390 GBP
$524 USD
View
7 more retailers have this diamond
Prices start from £246 GBPSave up to £144 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
£246 GBP