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Heart|Natural|IGI

0.90ct J SI1 Heart Natural Diamond

VG • J/SI1 • IGI 520282171

Shape and cutting style on the report: Heart brilliant

Certificate IGI 520282171

Diamond specifications and retailer prices

From £637 GBP
$854 USD
As of October 28, 2026
Save £701 GBP (52%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,170 GBP at NZ Jewellers · As of October 9, 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 and certified by IGI 520282171. Listed at 13 retailers as of October 28, 2026, with a 110% 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

Specifications

CutVery Good
PolishExcellent
SymmetryGood
FluorescenceFaint
Crown angle35°
Pavilion angle41.8°
OriginNatural
Grading LabIGI
CertificateIGI 520282171
Dimensions5.66 × 6.77 × 3.90 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
5.66 mm6.77 mm0.90 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateIGI 520282171
Side View
Table 61.0%Crown 35°Girdle: THK-VTKPavilion 41.8°Culet: NoneDepth 57.6%

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: Oct 28
Current: £2,170 GBP|Low: £585 GBP|High: £2,170 GBP|Avg: £932 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 12£637 GBP
Retailer 6£692 GBP
Retailer 8£692 GBP
Retailer 5£699 GBP
Retailer 7£718 GBP
Retailer 4£765 GBP
Retailer 13£798 GBP
Retailer 3£806 GBP
Retailer 2£828 GBP
Retailer 11£1,011 GBP
Retailer 10£1,274 GBP
Retailer 9£1,339 GBP
NZ Jewellers£2,170 GBP

12 data points across 13 retailers

13 retailers£637 GBP to £1,339 GBP

B+
Cheapest Retailer
-
£637 GBP
$854 USD
Final sale: no returns
B+
Retailer 2
-
£692 GBP
$927 USD
View
B+
Retailer 3
-
£692 GBP
$927 USD
View
B+
Retailer 4
-
£699 GBP
$937 USD
View
B+
Retailer 5
-
£718 GBP
$962 USD
View
B+
Retailer 6
-
£765 GBP
$1,025 USD
View
Retailer 7
-
£798 GBP
$1,069 USD
View
Price last confirmed 23 days ago
B+
Retailer 8
-
£806 GBP
$1,080 USD
View
B+
Retailer 9
-
£828 GBP
View
B
Retailer 10
-
£1,011 GBP
ZAR 21,877 ZAR
View
B
Retailer 11
-
£1,274 GBP
View
B
Retailer 12
-
£1,339 GBP
View
Most Expensive
NZ Jewellers
30443d66-2585-4ca0-918a-c7853745aa12 · Oct 9
£2,170 GBP
$2,907 USD
View
Price last confirmed 23 days ago
12 more retailers have this diamond
Prices start from £637 GBPSave up to £701 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.

B+
0.90ct Heart
£637 GBP