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Radiant|Natural|GIA

1.20ct K SI2 Radiant Natural Diamond

EX • K/SI2 • GIA 6525268306

Certificate GIA 6525268306

Diamond specifications and retailer prices

From £1,080 GBP
As of November 6, 2026
Save £1,381 GBP (56%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,455 GBP at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6525268306. Listed at 14 retailers as of November 4, 2026, with a 128% 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

1.20
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6525268306
Dimensions7.54 × 5.20 × 3.54 mm
L/W Ratio1.45
Top View
7.54 mm5.20 mm1.20 ctK / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6525268306
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.1%

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: £1,530 GBP|Low: £1,071 GBP|High: £2,517 GBP|Avg: £1,602 GBP|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 7£1,080 GBP
Retailer 2£1,126 GBP
Retailer 3£1,498 GBP
Retailer 6£1,511 GBP
Retailer 1£1,530 GBP
Retailer 4£1,914 GBP
Retailer 5£2,462 GBP

37 data points across 7 retailers

14 retailers£1,080 GBP to £2,462 GBP

A
Cheapest Retailer
-
£1,080 GBP
A
Retailer 2
-
£1,126 GBP
View
B+
Retailer 3
-
£1,359 GBP
View
Retailer 4
-
£1,417 GBP
View
Price last confirmed 22 days ago
Retailer 5
-
£1,417 GBP
View
Price last confirmed 20 days ago
Retailer 6
-
£1,482 GBP
View
Price last confirmed 22 days ago
B+
Retailer 7
-
£1,494 GBP
View
B+
Retailer 8
-
£1,498 GBP
View
B+
Retailer 9
-
£1,511 GBP
View
B+
Retailer 10
-
£1,530 GBP
View
Retailer 11
-
£1,635 GBP
View
Price last confirmed 19 days ago
B
Retailer 12
-
£1,914 GBP
View
B
Retailer 13
-
£2,462 GBP
View
Most Expensive
NZ Jewellers
fc520318-2d19-49b1-86c9-91c21f33159a · Oct 17
£3,455 GBP
$4,624 USD
View
Price last confirmed 20 days ago
13 more retailers have this diamond
Prices start from £1,080 GBPSave up to £1,381 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
1.20ct Radiant
£1,080 GBP