CaratHunter
Plans
Heart|Natural|GIA

0.31ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 3565586442

Certificate GIA 3565586442

Diamond specifications and retailer prices

From $629 SGD
£387 GBP
As of November 2, 2026
Save $253 SGD (29%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,117 SGD at MOH London · As of October 26, 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 October 31, 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 2
Current: $1,117 SGD|Low: $592 SGD|High: $1,127 SGD|Avg: $774 SGD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 2$629 SGD
Retailer 4$662 SGD
Retailer 5$683 SGD
Retailer 6$695 SGD
Retailer 3$882 SGD
MOH London$1,117 SGD

21 data points across 6 retailers

6 retailers$629 SGD to $882 SGD

B+
Cheapest Retailer
-
$629 SGD
£387 GBP
B
Retailer 2
-
$662 SGD
£408 GBP
View
B
Retailer 3
-
$683 SGD
$534 USD
View
B
Retailer 4
-
$695 SGD
$544 USD
View
B
Retailer 5
-
$882 SGD
€657 EUR
View
Most Expensive
MOH London
B24D2D10D · Oct 26
$1,117 SGD
£688 GBP
View
Price under review
5 more retailers have this diamond
Prices start from $629 SGDSave up to $253 SGD

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
$629 SGD