Radiant|Natural|GIA

1.02ct H SI1 Radiant Natural Diamond

ID • H/SI1 • GIA 6521732531

Certificate GIA 6521732531

Diamond specifications and retailer prices

From £1,099 GBP
HK$11,500 HKD
As of November 1, 2026
Save £2,091 GBP (66%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £3,628 GBP at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.02ct natural radiant diamond

This 1.02ct natural radiant 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 6521732531. Listed at 23 retailers as of October 28, 2026, with a 190% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6521732531
Dimensions7.93 × 5.08 × 3.04 mm
L/W Ratio1.56
Top View
7.93 mm5.08 mm1.02 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6521732531
Side View
Table 67.0%CrownGirdle: ThickPavilionCulet: NoneDepth 59.8%

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: £3,628 GBP|Low: £1,089 GBP|High: £3,628 GBP|Avg: £1,762 GBP
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
Retailer 20
November 2, 2026
Retailer 15£1,099 GBP
Retailer 13£1,168 GBP
Retailer 5£1,327 GBP
Retailer 4£1,370 GBP
Retailer 20£1,384 GBP
Retailer 9£1,401 GBP
Retailer 11£1,487 GBP
Retailer 12£1,487 GBP
Retailer 7£1,500 GBP
Retailer 6£1,529 GBP
Retailer 3£1,541 GBP
Retailer 8£1,556 GBP
Retailer 2£1,577 GBP
Retailer 18£1,586 GBP
Retailer 10£1,717 GBP
Retailer 16£1,768 GBP
Retailer 17£1,964 GBP
Retailer 14£2,519 GBP
Retailer 19£3,189 GBP
NZ Jewellers£3,628 GBP

25 data points across 20 retailers

23 retailers£1,099 GBP to £3,189 GBP

A
Cheapest Retailer
-
£1,099 GBP
HK$11,500 HKD
A
Retailer 2
-
£1,168 GBP
₹149,090 INR
View
A
Retailer 3
-
£1,327 GBP
$1,778 USD
View
Final sale: no returns
A
Retailer 4
-
£1,370 GBP
$1,835 USD
View
A
Retailer 5
-
£1,384 GBP
$1,855 USD
View
A
Retailer 6
-
£1,401 GBP
SGD 2,537 SGD
View
A
Retailer 7
-
£1,430 GBP
$1,916 USD
View
Retailer 8
-
£1,487 GBP
$1,993 USD
View
Price last confirmed 17 days ago
Retailer 9
-
£1,487 GBP
$1,993 USD
View
Price last confirmed 14 days ago
A
Retailer 10
-
£1,500 GBP
$2,010 USD
View
A
Retailer 11
-
£1,529 GBP
SGD 2,769 SGD
View
A
Retailer 12
-
£1,541 GBP
$2,065 USD
View
Retailer 13
-
£1,556 GBP
$2,085 USD
View
Price last confirmed 16 days ago
B+
Retailer 14
-
£1,561 GBP
A$3,218 AUD
View
A
Retailer 15
-
£1,577 GBP
View
B+
Retailer 16
-
£1,586 GBP
View
Retailer 17
-
£1,717 GBP
$2,300 USD
View
Price last confirmed 14 days ago
B+
Retailer 18
-
£1,768 GBP
ZAR 38,264 ZAR
View
Retailer 19
-
£1,846 GBP
A$3,805 AUD
View
Price last confirmed 27 days ago
B+
Retailer 20
-
£1,964 GBP
€2,506 EUR
View
B
Retailer 21
-
£2,519 GBP
View
B
Retailer 22
-
£3,189 GBP
View
Most Expensive
NZ Jewellers
1f884a21-fb69-4f7f-a170-e137c6c843e2 · Oct 17
£3,628 GBP
$4,861 USD
View
Price last confirmed 14 days ago
22 more retailers have this diamond
Prices start from £1,099 GBPSave up to £2,091 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 Radiant
£1,099 GBP