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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 $998 SGD
HK$6,100 HKD
As of November 1, 2026
Save $1,335 SGD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,456 SGD 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 31, 2026, with a 134% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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: Nov 1
Current: $2,456 SGD|Low: $982 SGD|High: $2,577 SGD|Avg: $1,725 SGD|-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
November 1, 2026
Retailer 5$998 SGD
Retailer 3$1,386 SGD
Retailer 10$1,387 SGD
Retailer 11$1,510 SGD
Retailer 12$1,521 SGD
Retailer 8$1,565 SGD
Retailer 2$1,580 SGD
Retailer 4$1,764 SGD
Retailer 6$1,881 SGD
Retailer 7$1,981 SGD
Retailer 9$2,333 SGD
MOH London$2,456 SGD

43 data points across 12 retailers

13 retailers$998 SGD to $2,333 SGD

A
Cheapest Retailer
-
$998 SGD
HK$6,100 HKD
A
Retailer 2
-
$1,386 SGD
View
A
Retailer 3
-
$1,387 SGD
$1,085 USD
View
A
Retailer 4
-
$1,510 SGD
$1,181 USD
View
A
Retailer 5
-
$1,521 SGD
$1,190 USD
View
A
Retailer 6
-
$1,565 SGD
£964 GBP
View
A
Retailer 7
-
$1,580 SGD
£973 GBP
View
A
Retailer 8
-
$1,702 SGD
A$2,048 AUD
View
Retailer 9
-
$1,764 SGD
A$2,123 AUD
View
Price last confirmed 28 days ago
A
Retailer 10
-
$1,881 SGD
€1,401 EUR
View
A
Retailer 11
-
$1,981 SGD
ZAR 25,032 ZAR
View
B+
Retailer 12
-
$2,333 SGD
View
Most Expensive
MOH London
15A271AEC · Oct 25
$2,456 SGD
£1,513 GBP
View
Price last confirmed 7 days ago
12 more retailers have this diamond
Prices start from $998 SGDSave up to $1,335 SGD

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
$998 SGD