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Heart|Natural|GIA

0.31ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 3565586442

Certificate GIA 3565586442

Diamond specifications and retailer prices

From €439 EUR
£387 GBP
As of November 3, 2026
Save €176 EUR (29%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €778 EUR at MOH London · As of November 2, 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 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 3565586442. Listed at 6 retailers as of November 2, 2026, with a 40% 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 3565586442
Dimensions4.23 × 4.67 × 2.68 mm
L/W Ratio1.10
Key to symbols
Crystal, Cloud
Top View
4.23 mm4.67 mm0.31 ctG / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 3565586442
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 57.5%

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 3
Current: €778 EUR|Low: €413 EUR|High: €786 EUR|Avg: €540 EUR|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 3, 2026
Retailer 2€439 EUR
Retailer 4€462 EUR
Retailer 5€476 EUR
Retailer 6€485 EUR
Retailer 3€615 EUR
MOH London€778 EUR

22 data points across 6 retailers

6 retailers€439 EUR to €615 EUR

B+
Cheapest Retailer
-
€439 EUR
£387 GBP
B
Retailer 2
-
€462 EUR
£408 GBP
View
B
Retailer 3
-
€476 EUR
$534 USD
View
B
Retailer 4
-
€485 EUR
$544 USD
View
B
Retailer 5
-
€615 EUR
View
Most Expensive
MOH London
B24D2D10D · Nov 2
€778 EUR
£687 GBP
View
Price under review
5 more retailers have this diamond
Prices start from €439 EURSave up to €176 EUR

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
€439 EUR