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Heart|Natural|GIA

0.31ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 6562745373

Certificate GIA 6562745373

Diamond specifications and retailer prices

From $538 CAD
£303 GBP
As of November 2, 2026
Save $433 CAD (45%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $971 CAD 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 I 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 6562745373. Listed at 4 retailers as of November 2, 2026, with prices from $538 to $971, a $433 spread on the same certified stone. MOH London lists it at $971. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6562745373
Dimensions3.99 × 4.63 × 2.79 mm
L/W Ratio1.16
Key to symbols
Feather
Top View
3.99 mm4.63 mm0.31 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6562745373
Side View
Table 63.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 60.3%

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: $971 CAD|Low: $534 CAD|High: $971 CAD|Avg: $646 CAD
MOH London
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 2$538 CAD
Retailer 4$618 CAD
Retailer 3$654 CAD
MOH London$971 CAD

5 data points across 4 retailers

4 retailers$538 CAD to $971 CAD

B+
Cheapest Retailer
-
$538 CAD
£303 GBP
B
Retailer 2
-
$618 CAD
$442 USD
View
B
Retailer 3
-
$654 CAD
$468 USD
View
Most Expensive
B
MOH London
C89490FA3 · Nov 2
$971 CAD
£547 GBP
View
3 more retailers have this diamond
Prices start from $538 CADSave up to $433 CAD

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
$538 CAD