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Heart|Natural|GIA

1.02ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 5536134264

Certificate GIA 5536134264

Diamond specifications and retailer prices

From £1,148 GBP
As of November 6, 2026
Save £1,966 GBP (63%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £3,250 GBP at Queensmith · As of October 28, 2026
View at Queensmith

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 5536134264. Listed at 22 retailers as of November 5, 2026, with a 171% 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5536134264
Dimensions7.06 × 6.25 × 4.15 mm
L/W Ratio1.13
Top View
7.06 mm6.25 mm1.02 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5536134264
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.7%

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 6
Current: £3,250 GBP|Low: £1,148 GBP|High: £3,259 GBP|Avg: £1,799 GBP|+3.0%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 13£1,148 GBP
Retailer 2£1,205 GBP
Retailer 4£1,382 GBP
Retailer 11£1,426 GBP
Retailer 9£1,428 GBP
Retailer 6£1,453 GBP
Retailer 7£1,594 GBP
Retailer 3£1,601 GBP
Retailer 8£1,627 GBP
Retailer 5£1,741 GBP
Retailer 10£1,829 GBP
Retailer 12£2,619 GBP
Queensmith£3,250 GBP

26 data points across 13 retailers

22 retailers£1,148 GBP to £3,114 GBP

A
Cheapest Retailer
-
£1,148 GBP
A
Retailer 2
-
£1,205 GBP
View
A
Retailer 3
-
£1,382 GBP
View
Final sale: no returns
B+
Retailer 4
-
£1,426 GBP
View
B+
Retailer 5
-
£1,428 GBP
View
B+
Retailer 6
-
£1,451 GBP
View
B+
Retailer 7
-
£1,453 GBP
View
B+
Retailer 8
-
£1,453 GBP
View
Retailer 9
-
£1,508 GBP
View
Price last confirmed 21 days ago
Retailer 10
-
£1,508 GBP
View
Price last confirmed 19 days ago
B+
Retailer 11
-
£1,577 GBP
View
Retailer 12
-
£1,578 GBP
View
Price last confirmed 21 days ago
B+
Retailer 13
-
£1,594 GBP
View
B+
Retailer 14
-
£1,601 GBP
View
B+
Retailer 15
-
£1,627 GBP
View
Retailer 16
-
£1,741 GBP
View
Price last confirmed 18 days ago
B+
Retailer 17
-
£1,829 GBP
View
Retailer 18
-
£1,872 GBP
View
Price last confirmed 32 days ago
B
Retailer 19
-
£2,619 GBP
View
B
Retailer 20
-
£3,114 GBP
View
Retailer 21
-
£3,154 GBP
View
Price last confirmed 19 days ago
Most Expensive
Queensmith
5536134264 · Oct 28
£3,250 GBP
View
Price last confirmed 9 days ago
21 more retailers have this diamond
Prices start from £1,148 GBPSave up to £1,966 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
£1,148 GBP