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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 €699 EUR
HK$6,100 HKD
As of October 31, 2026
Save €1,021 EUR (59%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,720 EUR 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 €699 to €1,720, a €1,021 spread on the same certified stone. MOH London lists it at €1,720. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €1,720 EUR|Low: €687 EUR|High: €1,804 EUR|Avg: €1,209 EUR|-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€699 EUR
Retailer 3€970 EUR
Retailer 10€971 EUR
Retailer 11€1,057 EUR
Retailer 12€1,065 EUR
Retailer 8€1,095 EUR
Retailer 5€1,106 EUR
Retailer 4€1,235 EUR
Retailer 6€1,317 EUR
Retailer 7€1,387 EUR
Retailer 9€1,633 EUR
MOH London€1,720 EUR

42 data points across 12 retailers

13 retailers€699 EUR to €1,720 EUR

A
Cheapest Retailer
-
€699 EUR
HK$6,100 HKD
A
Retailer 2
-
€970 EUR
SGD 1,465 SGD
View
A
Retailer 3
-
€971 EUR
$1,085 USD
View
A
Retailer 4
-
€1,057 EUR
$1,181 USD
View
A
Retailer 5
-
€1,065 EUR
$1,190 USD
View
A
Retailer 6
-
€1,095 EUR
£964 GBP
View
A
Retailer 7
-
€1,106 EUR
£973 GBP
View
A
Retailer 8
-
€1,192 EUR
A$2,048 AUD
View
Retailer 9
-
€1,235 EUR
A$2,123 AUD
View
Price last confirmed 28 days ago
A
Retailer 10
-
€1,317 EUR
View
A
Retailer 11
-
€1,387 EUR
ZAR 25,032 ZAR
View
B+
Retailer 12
-
€1,633 EUR
SGD 2,466 SGD
View
Most Expensive
B+
MOH London
15A271AEC · Oct 25
€1,720 EUR
£1,513 GBP
View
12 more retailers have this diamond
Prices start from €699 EURSave up to €1,021 EUR

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
€699 EUR