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Heart|Natural|GIA

1.02ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 2546179130

Certificate GIA 2546179130

Diamond specifications and retailer prices

From £879 GBP
As of November 6, 2026
Save £931 GBP (51%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,913 GBP at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.02ct natural heart diamond

This 1.02ct natural heart sits in the classic 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 2546179130. Listed at 17 retailers as of November 6, 2026, with a 106% 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

1.02
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Pavilion angle41.7°
OriginNatural
Grading LabGIA
CertificateGIA 2546179130
Dimensions6.20 × 6.76 × 4.24 mm
L/W Ratio1.09
Top View
6.20 mm6.76 mm1.02 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2546179130
Side View
Table 62.0%CrownGirdle: STK-VTKPavilion 41.7°Culet: NoneDepth 62.6%

Caratlytics Score

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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: Nov 6
Current: £1,810 GBP|Low: £870 GBP|High: £2,025 GBP|Avg: £1,267 GBP|-5.5%
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
November 6, 2026
Retailer 8£879 GBP
Retailer 4£893 GBP
Retailer 2£979 GBP
Retailer 15£1,024 GBP
Retailer 3£1,038 GBP
Retailer 9£1,046 GBP
Retailer 6£1,053 GBP
Retailer 12£1,053 GBP
Retailer 11£1,180 GBP
Retailer 14£1,304 GBP
Retailer 13£1,384 GBP
Retailer 10£1,480 GBP
Retailer 7£1,490 GBP
Retailer 1£1,810 GBP
Retailer 5£1,882 GBP

27 data points across 15 retailers

17 retailers£879 GBP to £1,810 GBP

A
Cheapest Retailer
-
£879 GBP
A
Retailer 2
-
£893 GBP
View
Final sale: no returns
Retailer 3
-
£979 GBP
View
Price last confirmed 8 days ago
A
Retailer 4
-
£1,024 GBP
View
Retailer 5
-
£1,038 GBP
View
Price last confirmed 9 days ago
A
Retailer 6
-
£1,046 GBP
View
A
Retailer 7
-
£1,053 GBP
View
A
Retailer 8
-
£1,053 GBP
View
A
Retailer 9
-
£1,180 GBP
View
A
Retailer 10
-
£1,304 GBP
View
B+
Retailer 11
-
£1,384 GBP
View
B+
Retailer 12
-
£1,387 GBP
View
B+
Retailer 13
-
£1,480 GBP
View
Retailer 14
-
£1,490 GBP
View
Price last confirmed 32 days ago
B
Retailer 15
-
£1,810 GBP
View
Retailer 16
-
£1,882 GBP
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
40ef0b5b-a4c9-48ce-8d54-ed892c5e3378 · Sep 29
£2,913 GBP
$3,899 USD
View
Price last confirmed 38 days ago
16 more retailers have this diamond
Prices start from £879 GBPSave up to £931 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
1.02ct Heart
£879 GBP