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Radiant|Natural|GIA

1.30ct H SI2 Radiant Natural Diamond

ID • H/SI2 • GIA 6552502792

Certificate GIA 6552502792

Diamond specifications and retailer prices

From £1,520 GBP
As of November 6, 2026
Save £2,132 GBP (58%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,563 GBP at NZ Jewellers · As of October 9, 2026
View at NZ Jewellers

About this 1.3ct natural radiant diamond

This 1.3ct natural radiant sits in the one-and-a-quarter to one-and-a-half 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 6552502792. Listed at 8 retailers as of November 4, 2026, with a 140% 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

1.30
Carat
H
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle54.98°
OriginNatural
Grading LabGIA
CertificateGIA 6552502792
Dimensions7.55 × 5.39 × 3.65 mm
L/W Ratio1.40
Key to symbols
Crystal, Cloud
Top View
7.55 mm5.39 mm1.30 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552502792
Side View
Table 66.0%CrownGirdle: STK-THKPavilion 54.98°Culet: NoneDepth 67.8%

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 6
Current: £1,520 GBP|Low: £1,520 GBP|High: £3,772 GBP|Avg: £2,498 GBP|-7.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 1£1,520 GBP
Retailer 2£2,119 GBP
Retailer 5£2,257 GBP
Retailer 4£3,208 GBP
Retailer 3£3,653 GBP

20 data points across 5 retailers

8 retailers£1,520 GBP to £3,653 GBP

A
Cheapest Retailer
-
£1,520 GBP
A
Retailer 2
-
£2,119 GBP
View
Retailer 3
-
£2,183 GBP
View
Price last confirmed 31 days ago
A
Retailer 4
-
£2,257 GBP
View
Retailer 5
-
£2,291 GBP
View
Price last confirmed 38 days ago
Retailer 6
-
£3,208 GBP
View
Price last confirmed 10 days ago
B
Retailer 7
-
£3,653 GBP
View
Most Expensive
NZ Jewellers
55787119-4f1a-45ee-adc7-f9d5ee15c02a · Oct 9
£4,563 GBP
$6,108 USD
View
Price last confirmed 28 days ago
7 more retailers have this diamond
Prices start from £1,520 GBPSave up to £2,132 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
1.30ct Radiant
£1,520 GBP