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Heart|Natural|GIA

0.90ct H SI1 Heart Natural Diamond

ID • H/SI1 • GIA 2557383760

Certificate GIA 2557383760

Diamond specifications and retailer prices

From £706 GBP
$946 USD
As of November 1, 2026
Save £1,524 GBP (68%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,230 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557383760. Listed at 16 retailers as of October 30, 2026, with prices from £706 to £2,230, a £1,524 spread on the same certified stone. NZ Jewellers lists it at £2,230. 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
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557383760
Dimensions6.63 × 5.99 × 3.91 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
6.63 mm5.99 mm0.90 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557383760
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.0%

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: £2,230 GBP|Low: £672 GBP|High: £2,230 GBP|Avg: £1,094 GBP|+1.0%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 16£706 GBP
Retailer 8£748 GBP
Retailer 9£761 GBP
Retailer 17£828 GBP
Retailer 19£828 GBP
Retailer 18£860 GBP
Retailer 10£912 GBP
Retailer 3£934 GBP
Retailer 11£944 GBP
Retailer 14£955 GBP
Retailer 4£1,000 GBP
Retailer 5£1,000 GBP
Retailer 6£1,030 GBP
Retailer 7£1,120 GBP
Retailer 12£1,277 GBP
Retailer 15£1,339 GBP
Retailer 13£1,675 GBP
Retailer 2£1,759 GBP
NZ Jewellers£2,230 GBP

31 data points across 19 retailers

16 retailers£706 GBP to £2,230 GBP

A
Cheapest Retailer
-
£706 GBP
$946 USD
A
Retailer 2
-
£748 GBP
$1,002 USD
View
A
Retailer 3
-
£761 GBP
$1,020 USD
View
A
Retailer 4
-
£828 GBP
$1,110 USD
View
A
Retailer 5
-
£860 GBP
$1,152 USD
View
B+
Retailer 6
-
£934 GBP
$1,251 USD
View
B+
Retailer 7
-
£955 GBP
$1,280 USD
View
B+
Retailer 8
-
£1,000 GBP
$1,340 USD
View
B+
Retailer 9
-
£1,000 GBP
$1,340 USD
View
B+
Retailer 10
-
£1,030 GBP
$1,380 USD
View
Retailer 11
-
£1,120 GBP
View
Price last confirmed 17 days ago
B+
Retailer 12
-
£1,277 GBP
€1,630 EUR
View
B+
Retailer 13
-
£1,339 GBP
ZAR 28,984 ZAR
View
B
Retailer 14
-
£1,675 GBP
View
B
Retailer 15
-
£1,759 GBP
View
Most Expensive
B
NZ Jewellers
815dda81-5c41-4345-81a9-9a65129d2c49 · Oct 30
£2,230 GBP
$2,988 USD
View
15 more retailers have this diamond
Prices start from £706 GBPSave up to £1,524 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
£706 GBP