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Heart|Natural|GIA

0.90ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 2235990328

Certificate GIA 2235990328

Diamond specifications and retailer prices

From £525 GBP
HK$5,500 HKD
As of October 31, 2026
Save £748 GBP (59%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,983 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 I 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 2235990328. Listed at 10 retailers as of October 31, 2026, with a 142% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2235990328
Dimensions5.57 × 6.68 × 4.11 mm
L/W Ratio1.20
Girdle conditionFaceted
Top View
5.57 mm6.68 mm0.90 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2235990328
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.6%

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: Oct 31
Current: £1,273 GBP|Low: £516 GBP|High: £1,600 GBP|Avg: £897 GBP|-20.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 4£525 GBP
Retailer 3£641 GBP
Retailer 2£705 GBP
Retailer 5£722 GBP
Retailer 8£731 GBP
Retailer 7£861 GBP
Retailer 9£1,076 GBP
Retailer 6£1,086 GBP
Retailer 1£1,273 GBP

35 data points across 9 retailers

10 retailers£525 GBP to £1,273 GBP

A
Cheapest Retailer
-
£525 GBP
HK$5,500 HKD
B+
Retailer 2
-
£641 GBP
$859 USD
View
Final sale: no returns
A
Retailer 3
-
£705 GBP
View
A
Retailer 4
-
£722 GBP
$967 USD
View
Retailer 5
-
£731 GBP
SGD 1,323 SGD
View
Price last confirmed 9 days ago
A
Retailer 6
-
£861 GBP
$1,153 USD
View
B+
Retailer 7
-
£1,076 GBP
A$2,218 AUD
View
Retailer 8
-
£1,086 GBP
$1,455 USD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£1,273 GBP
View
Most Expensive
NZ Jewellers
1e936303-86b0-40a1-af21-6bf9ce9fef65 · Sep 25
£1,983 GBP
$2,657 USD
View
Price last confirmed 37 days ago
9 more retailers have this diamond
Prices start from £525 GBPSave up to £748 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
£525 GBP