CaratHunter
Plans
Radiant|Natural|GIA

1.30ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 1553139098

Certificate GIA 1553139098

Diamond specifications and retailer prices

From £2,078 GBP
As of November 6, 2026
Save £2,518 GBP (55%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £4,595 GBP at NZ Jewellers · As of November 3, 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 1553139098. Listed at 7 retailers as of November 3, 2026, with prices from £2,078 to £4,595, a £2,518 spread on the same certified stone. NZ Jewellers lists it at £4,595. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle49.46°
Pavilion angle37°
OriginNatural
Grading LabGIA
CertificateGIA 1553139098
Dimensions7.19 × 5.53 × 3.74 mm
L/W Ratio1.30
Girdle conditionThick
Key to symbols
Crystal, Feather, Knot, Needle
Top View
7.19 mm5.53 mm1.30 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1553139098
Side View
Table 70.0%Crown 49.46°Girdle: STK-THKPavilion 37°Culet: NoneDepth 67.6%

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: £4,595 GBP|Low: £2,078 GBP|High: £4,666 GBP|Avg: £2,761 GBP|-1.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 4£2,078 GBP
Retailer 2£2,173 GBP
Retailer 6£2,198 GBP
Retailer 3£2,282 GBP
Retailer 5£2,309 GBP
Retailer 8£2,324 GBP
Retailer 9£2,572 GBP
Retailer 10£2,711 GBP
Retailer 7£3,736 GBP
NZ Jewellers£4,595 GBP

31 data points across 10 retailers

7 retailers£2,078 GBP to £4,595 GBP

A
Cheapest Retailer
-
£2,078 GBP
A
Retailer 2
-
£2,173 GBP
View
A
Retailer 3
-
£2,198 GBP
View
A
Retailer 4
-
£2,282 GBP
View
A
Retailer 5
-
£2,309 GBP
View
Retailer 6
-
£3,736 GBP
View
Price last confirmed 12 days ago
Most Expensive
B
NZ Jewellers
7e5ef32b-da7d-4619-bf38-2019625475b5 · Nov 3
£4,595 GBP
$6,151 USD
View
6 more retailers have this diamond
Prices start from £2,078 GBPSave up to £2,518 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
£2,078 GBP