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Radiant|Natural|GIA

0.91ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 2557190553

Certificate GIA 2557190553

Diamond specifications and retailer prices

From £678 GBP
HK$7,100 HKD
As of October 30, 2026
Save £1,683 GBP (71%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,362 GBP at Moon Ocean · As of October 30, 2026
View at Moon Ocean

About this 0.91ct natural radiant diamond

This 0.91ct natural radiant sits in the just-under-one-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 2557190553. Listed at 14 retailers as of October 30, 2026, with prices from £678 to £2,362, a £1,683 spread on the same certified stone. Moon Ocean lists it at £2,362. 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

0.91
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557190553
Dimensions6.28 × 4.89 × 3.38 mm
L/W Ratio1.28
Top View
6.28 mm4.89 mm0.91 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2557190553
Side View
Table 60.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 69.1%

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: Oct 30
Current: £2,362 GBP|Low: £668 GBP|High: £2,435 GBP|Avg: £1,159 GBP|-3.0%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 10£678 GBP
Retailer 2£683 GBP
Retailer 3£840 GBP
Retailer 6£910 GBP
Retailer 5£945 GBP
Retailer 12£949 GBP
Retailer 4£990 GBP
Retailer 11£1,014 GBP
Retailer 9£1,050 GBP
Retailer 7£1,676 GBP
Retailer 8£2,219 GBP
Moon Ocean£2,362 GBP

34 data points across 12 retailers

14 retailers£678 GBP to £2,362 GBP

A
Cheapest Retailer
-
£678 GBP
HK$7,100 HKD
A
Retailer 2
-
£683 GBP
₹87,194 INR
View
B+
Retailer 3
-
£840 GBP
$1,125 USD
View
Final sale: no returns
A
Retailer 4
-
£910 GBP
$1,219 USD
View
A
Retailer 5
-
£945 GBP
$1,266 USD
View
A
Retailer 6
-
£949 GBP
SGD 1,719 SGD
View
A
Retailer 7
-
£990 GBP
$1,326 USD
View
A
Retailer 8
-
£1,014 GBP
$1,359 USD
View
B+
Retailer 9
-
£1,050 GBP
$1,407 USD
View
Retailer 10
-
£1,050 GBP
$1,407 USD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
£1,120 GBP
A$2,308 AUD
View
B+
Retailer 12
-
£1,676 GBP
View
B
Retailer 13
-
£2,219 GBP
$2,973 USD
View
Most Expensive
B
Moon Ocean
NVN-A2691B20A-553 · Oct 30
£2,362 GBP
View
13 more retailers have this diamond
Prices start from £678 GBPSave up to £1,683 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
0.91ct Radiant
£678 GBP