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Radiant|Natural|GIA

0.81ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 5426763283

Certificate GIA 5426763283

Diamond specifications and retailer prices

From £583 GBP
HK$6,100 HKD
As of October 31, 2026
Save £851 GBP (59%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,434 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 0.81ct natural radiant diamond

This 0.81ct natural radiant sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5426763283. Listed at 13 retailers as of October 25, 2026, with prices from £583 to £1,434, a £851 spread on the same certified stone. MOH London lists it at £1,434. 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

0.81
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5426763283
Dimensions5.14 × 5.10 × 3.49 mm
L/W Ratio1.01
Top View
5.14 mm5.10 mm0.81 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5426763283
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.4%

Caratlytics Score

How it works →
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: £1,434 GBP|Low: £573 GBP|High: £1,504 GBP|Avg: £1,008 GBP|-3.6%
MOH London
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 2£583 GBP
Retailer 3£809 GBP
Retailer 10£810 GBP
Retailer 11£882 GBP
Retailer 12£888 GBP
Retailer 8£913 GBP
Retailer 5£922 GBP
Retailer 4£1,030 GBP
Retailer 6£1,098 GBP
Retailer 7£1,156 GBP
Retailer 9£1,362 GBP
MOH London£1,434 GBP

42 data points across 12 retailers

13 retailers£583 GBP to £1,434 GBP

A
Cheapest Retailer
-
£583 GBP
HK$6,100 HKD
A
Retailer 2
-
£809 GBP
SGD 1,465 SGD
View
A
Retailer 3
-
£810 GBP
$1,085 USD
View
A
Retailer 4
-
£882 GBP
$1,181 USD
View
A
Retailer 5
-
£888 GBP
$1,190 USD
View
A
Retailer 6
-
£913 GBP
View
A
Retailer 7
-
£922 GBP
View
A
Retailer 8
-
£994 GBP
A$2,048 AUD
View
Retailer 9
-
£1,030 GBP
A$2,123 AUD
View
Price last confirmed 27 days ago
A
Retailer 10
-
£1,098 GBP
€1,401 EUR
View
A
Retailer 11
-
£1,156 GBP
ZAR 25,032 ZAR
View
B+
Retailer 12
-
£1,362 GBP
SGD 2,466 SGD
View
Most Expensive
B+
MOH London
15A271AEC · Oct 25
£1,434 GBP
View
12 more retailers have this diamond
Prices start from £583 GBPSave up to £851 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
0.81ct Radiant
£583 GBP