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Heart|Natural|GIA

0.90ct H SI2 Heart Natural Diamond

EX • H/SI2 • GIA 6545146756

Certificate GIA 6545146756

Diamond specifications and retailer prices

From £645 GBP
$864 USD
As of October 31, 2026
Save £1,546 GBP (71%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,191 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545146756. Listed at 14 retailers as of October 30, 2026, with prices from £645 to £2,191, a £1,546 spread on the same certified stone. NZ Jewellers lists it at £2,191. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545146756
Dimensions6.04 × 6.62 × 3.73 mm
L/W Ratio1.10
Top View
6.04 mm6.62 mm0.90 ctH / SI2
OriginNatural
CutExcellent
PolishGood
SymmetryVery Good
FluorescenceNone
CertificateGIA 6545146756
Side View
Table 60.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 56.4%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: £2,191 GBP|Low: £610 GBP|High: £2,264 GBP|Avg: £1,000 GBP|-3.2%
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
November 1, 2026
Retailer 6£645 GBP
Retailer 2£699 GBP
Retailer 11£699 GBP
Retailer 4£706 GBP
Retailer 12£725 GBP
Retailer 14£796 GBP
Retailer 5£801 GBP
Retailer 10£806 GBP
Retailer 13£816 GBP
Retailer 8£818 GBP
Retailer 9£983 GBP
Retailer 3£1,287 GBP
Retailer 7£1,809 GBP
NZ Jewellers£2,191 GBP

33 data points across 14 retailers

14 retailers£645 GBP to £2,191 GBP

A
Cheapest Retailer
-
£645 GBP
$864 USD
Final sale: no returns
A
Retailer 2
-
£699 GBP
$936 USD
View
A
Retailer 3
-
£699 GBP
$936 USD
View
A
Retailer 4
-
£706 GBP
$946 USD
View
A
Retailer 5
-
£725 GBP
$972 USD
View
A
Retailer 6
-
£796 GBP
$1,066 USD
View
A
Retailer 7
-
£801 GBP
$1,073 USD
View
A
Retailer 8
-
£806 GBP
$1,080 USD
View
A
Retailer 9
-
£816 GBP
View
A
Retailer 10
-
£818 GBP
View
B+
Retailer 11
-
£983 GBP
€1,255 EUR
View
B
Retailer 12
-
£1,287 GBP
View
B
Retailer 13
-
£1,809 GBP
View
Most Expensive
B
NZ Jewellers
400c1f94-8916-4ec4-ab27-694b0f58e448 · Oct 30
£2,191 GBP
$2,936 USD
View
13 more retailers have this diamond
Prices start from £645 GBPSave up to £1,546 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
£645 GBP