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 $874 NZD
£387 GBP
As of November 2, 2026
Save $352 NZD (29%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,551 NZD 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 2
Current: $1,551 NZD|Low: $824 NZD|High: $1,566 NZD|Avg: $1,076 NZD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 2$874 NZD
Retailer 4$920 NZD
Retailer 5$949 NZD
Retailer 6$967 NZD
Retailer 3$1,226 NZD
MOH London$1,551 NZD

21 data points across 6 retailers

6 retailers$874 NZD to $1,226 NZD

B+
Cheapest Retailer
-
$874 NZD
£387 GBP
B
Retailer 2
-
$920 NZD
£408 GBP
View
B
Retailer 3
-
$949 NZD
$534 USD
View
B
Retailer 4
-
$967 NZD
$544 USD
View
B
Retailer 5
-
$1,226 NZD
€657 EUR
View
Most Expensive
MOH London
B24D2D10D · Nov 2
$1,551 NZD
£687 GBP
View
Price under review
5 more retailers have this diamond
Prices start from $874 NZDSave up to $352 NZD

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
$874 NZD