Radiant|Natural|GIA

0.90ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 2546109590

Certificate GIA 2546109590

Diamond specifications and retailer prices

From £1,082 GBP
SGD 1,959 SGD
As of October 31, 2026
Save £208 GBP (16%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,670 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.9ct natural radiant diamond

This 0.9ct natural radiant sits in the just-under-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 2546109590. Listed at 16 retailers as of October 31, 2026, with a relatively tight 19% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

0.90
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle37°
OriginNatural
Grading LabGIA
CertificateGIA 2546109590
Dimensions6.31 × 4.85 × 3.37 mm
L/W Ratio1.30
Top View
6.31 mm4.85 mm0.90 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2546109590
Side View
Table 67.0%CrownGirdle: STK-THKPavilion 37°Culet: NoneDepth 69.5%

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: Oct 31
Current: £951 GBP|Low: £745 GBP|High: £1,977 GBP|Avg: £1,197 GBP|-1.9%
Retailer 1
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
October 22, 2026
Retailer 12£745 GBP
Retailer 1£951 GBP
Retailer 14£972 GBP
Retailer 9£985 GBP
Retailer 6£1,010 GBP
Retailer 11£1,037 GBP
Retailer 15£1,037 GBP
Retailer 3£1,051 GBP
Retailer 7£1,082 GBP
Retailer 4£1,146 GBP
Retailer 16£1,309 GBP
Retailer 8£1,401 GBP
Retailer 2£1,414 GBP
Retailer 10£1,525 GBP
Retailer 13£1,566 GBP
Retailer 5£1,939 GBP

24 data points across 16 retailers

16 retailers£1,082 GBP to £1,289 GBP

Retailer 1
-
£745 GBP
HK$7,800 HKD
Price last confirmed 8 days ago
Retailer 2
-
£951 GBP
€1,213 EUR
View
Price last confirmed 10 days ago
Retailer 3
-
£985 GBP
View
Price last confirmed 10 days ago
Retailer 4
-
£1,010 GBP
$1,353 USD
View
Price last confirmed 17 days ago
Retailer 5
-
£1,037 GBP
$1,390 USD
View
Price last confirmed 10 days ago
Retailer 6
-
£1,037 GBP
$1,390 USD
View
Price last confirmed 11 days ago
Retailer 7
-
£1,051 GBP
SGD 1,903 SGD
View
Price last confirmed 11 days ago
A
Retailer 8
-
£1,082 GBP
SGD 1,959 SGD
View
Retailer 9
-
£1,146 GBP
$1,535 USD
View
Price last confirmed 11 days ago
B+
Retailer 10
-
£1,289 GBP
A$2,658 AUD
View
Retailer 11
-
£1,309 GBP
$1,754 USD
View
Price last confirmed 11 days ago
Retailer 12
-
£1,401 GBP
A$2,888 AUD
View
Price last confirmed 26 days ago
Retailer 13
-
£1,525 GBP
ZAR 33,012 ZAR
View
Price last confirmed 10 days ago
Retailer 14
-
£1,566 GBP
$2,098 USD
View
Price last confirmed 11 days ago
Retailer 15
-
£1,939 GBP
View
Price last confirmed 13 days ago
Most Expensive
NZ Jewellers
1353fa45-759c-4d39-a0ae-bce8918c11df · Sep 25
£2,670 GBP
$3,577 USD
View
Price last confirmed 37 days ago
15 more retailers have this diamond
Prices start from £1,082 GBPSave up to £208 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
0.90ct Radiant
£1,082 GBP