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Heart|Natural|GIA

0.31ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 5563390004

Certificate GIA 5563390004

Diamond specifications and retailer prices

From £268 GBP
$360 USD
As of November 2, 2026
Save £159 GBP (37%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £427 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 5563390004. Listed at 8 retailers as of October 27, 2026, with prices from £268 to £427, a £159 spread on the same certified stone. Wholesale Diamonds Direct lists it at £427. 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 angle37.32°
Pavilion angle39.3°
OriginNatural
Grading LabGIA
CertificateGIA 5563390004
Dimensions4.13 × 4.66 × 2.67 mm
L/W Ratio1.13
Culet sizeNone
Top View
4.13 mm4.66 mm0.31 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5563390004
Side View
Table 58.0%Crown 37.32°Girdle: MED-VTKPavilion 39.3°Culet: NoneDepth 57.3%

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 2
Current: £352 GBP|Low: £268 GBP|High: £427 GBP|Avg: £342 GBP|+4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
November 2, 2026
Retailer 6£268 GBP
Retailer 7£288 GBP
Retailer 3£317 GBP
Retailer 5£329 GBP
Retailer 1£352 GBP
Retailer 2£371 GBP
Retailer 4£375 GBP
Wholesale Diamonds Direct£427 GBP

29 data points across 8 retailers

8 retailers£268 GBP to £427 GBP

B+
Cheapest Retailer
-
£268 GBP
$360 USD
B+
Retailer 2
-
£288 GBP
SGD 522 SGD
View
B+
Retailer 3
-
£317 GBP
SGD 574 SGD
View
B
Retailer 4
-
£329 GBP
$442 USD
View
B+
Retailer 5
-
£352 GBP
View
B
Retailer 6
-
£371 GBP
View
B
Retailer 7
-
£375 GBP
$503 USD
View
Most Expensive
B
Wholesale Diamonds Direct
465935600 · Oct 27
£427 GBP
$573 USD
View
7 more retailers have this diamond
Prices start from £268 GBPSave up to £159 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.

B+
0.31ct Heart
£268 GBP