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Heart|Natural|GIA

0.90ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 7551117623

Certificate GIA 7551117623

Diamond specifications and retailer prices

From £543 GBP
$727 USD
As of November 2, 2026
Save £1,302 GBP (71%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,844 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 7551117623. Listed at 4 retailers as of October 30, 2026, with prices from £543 to £1,844, a £1,302 spread on the same certified stone. NZ Jewellers lists it at £1,844. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551117623
Dimensions5.75 × 6.55 × 3.83 mm
L/W Ratio1.14
Key to symbols
Twinning Wisp
Top View
5.75 mm6.55 mm0.90 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7551117623
Side View
Table 57.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 58.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £1,844 GBP|Low: £470 GBP|High: £2,135 GBP|Avg: £1,104 GBP|-13.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 4£543 GBP
Retailer 3£721 GBP
Retailer 5£1,046 GBP
Retailer 2£1,077 GBP
Retailer 6£1,139 GBP
NZ Jewellers£1,844 GBP

19 data points across 6 retailers

4 retailers£543 GBP to £1,844 GBP

A
Cheapest Retailer
-
£543 GBP
$727 USD
Final sale: no returns
A
Retailer 2
-
£721 GBP
$966 USD
View
B
Retailer 3
-
£1,077 GBP
View
Most Expensive
B
NZ Jewellers
0596bc72-2a96-4a88-9e9e-a48f0f12c6c7 · Oct 30
£1,844 GBP
$2,471 USD
View
3 more retailers have this diamond
Prices start from £543 GBPSave up to £1,302 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
£543 GBP