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Heart|Natural|GIA

0.90ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 6545863124

Certificate GIA 6545863124

Diamond specifications and retailer prices

From £465 GBP
$623 USD
As of November 2, 2026
Save £108 GBP (19%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £573 GBP at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.9ct natural heart diamond

This 0.9ct natural heart sits in the just-under-one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545863124. Listed at 4 retailers as of November 2, 2026, with prices from £465 to £573, a £108 spread on the same certified stone. 77 Diamonds lists it at £573. 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

0.90
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6545863124
Dimensions5.83 × 6.79 × 3.98 mm
L/W Ratio1.16
Top View
5.83 mm6.79 mm0.90 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6545863124
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: £573 GBP|Low: £405 GBP|High: £612 GBP|Avg: £536 GBP|-4.6%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 2£465 GBP
Retailer 3£520 GBP
Retailer 4£565 GBP
77 Diamonds£573 GBP

38 data points across 4 retailers

4 retailers£465 GBP to £573 GBP

A
Cheapest Retailer
-
£465 GBP
$623 USD
Final sale: no returns
A
Retailer 2
-
£520 GBP
SGD 941 SGD
View
Retailer 3
-
£565 GBP
$757 USD
View
Price last confirmed 27 days ago
Most Expensive
B+
77 Diamonds
HSCPRATRHMKD · Nov 2
£573 GBP
View
3 more retailers have this diamond
Prices start from £465 GBPSave up to £108 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.

A
0.90ct Heart
£465 GBP