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Heart|Natural|GIA

0.90ct J SI1 Heart Natural Diamond

VG • J/SI1 • GIA 2536079505

Certificate GIA 2536079505

Diamond specifications and retailer prices

From £630 GBP
HK$6,600 HKD
As of November 1, 2026
Save £922 GBP (59%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,199 GBP at NZ Jewellers · As of September 25, 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2536079505. Listed at 18 retailers as of November 1, 2026, with a 146% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.90
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 2536079505
Dimensions6.56 × 5.76 × 3.45 mm
L/W Ratio1.14
Top View
6.56 mm5.76 mm0.90 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2536079505
Side View
Table 60.0%CrownGirdle: MED-THKPavilion 40.2°Culet: NoneDepth 59.9%

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 1
Current: £844 GBP|Low: £630 GBP|High: £1,687 GBP|Avg: £1,005 GBP|-13.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 11£630 GBP
Retailer 16£663 GBP
Retailer 10£664 GBP
Retailer 13£678 GBP
Retailer 9£731 GBP
Retailer 2£733 GBP
Retailer 4£841 GBP
Retailer 1£844 GBP
Retailer 5£866 GBP
Retailer 7£953 GBP
Retailer 8£1,120 GBP
Retailer 15£1,142 GBP
Retailer 14£1,221 GBP
Retailer 3£1,268 GBP
Retailer 6£1,535 GBP
Retailer 12£1,552 GBP

32 data points across 16 retailers

18 retailers£630 GBP to £1,552 GBP

A
Cheapest Retailer
-
£630 GBP
HK$6,600 HKD
A
Retailer 2
-
£663 GBP
$888 USD
View
A
Retailer 3
-
£664 GBP
$890 USD
View
A
Retailer 4
-
£678 GBP
$908 USD
View
Final sale: no returns
A
Retailer 5
-
£731 GBP
$980 USD
View
A
Retailer 6
-
£733 GBP
$982 USD
View
B+
Retailer 7
-
£841 GBP
$1,127 USD
View
B+
Retailer 8
-
£844 GBP
View
B+
Retailer 9
-
£866 GBP
$1,160 USD
View
B+
Retailer 10
-
£953 GBP
SGD 1,726 SGD
View
Retailer 11
-
£1,120 GBP
A$2,308 AUD
View
Price last confirmed 29 days ago
B+
Retailer 12
-
£1,142 GBP
$1,530 USD
View
B
Retailer 13
-
£1,168 GBP
A$2,408 AUD
View
B
Retailer 14
-
£1,221 GBP
ZAR 26,435 ZAR
View
Retailer 15
-
£1,268 GBP
$1,699 USD
View
Price last confirmed 9 days ago
B
Retailer 16
-
£1,535 GBP
View
B
Retailer 17
-
£1,552 GBP
$2,080 USD
View
Most Expensive
NZ Jewellers
f4864d70-c00b-4f9c-bdc4-ecef3960cc2c · Sep 25
£2,199 GBP
$2,946 USD
View
Price last confirmed 37 days ago
17 more retailers have this diamond
Prices start from £630 GBPSave up to £922 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
£630 GBP