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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 $1,112 AUD
HK$6,100 HKD
As of November 1, 2026
Save $1,486 AUD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,735 AUD 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,735 AUD|Low: $1,093 AUD|High: $2,869 AUD|Avg: $1,922 AUD|-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$1,112 AUD
Retailer 3$1,543 AUD
Retailer 10$1,544 AUD
Retailer 11$1,682 AUD
Retailer 12$1,694 AUD
Retailer 8$1,742 AUD
Retailer 2$1,759 AUD
Retailer 4$1,965 AUD
Retailer 6$2,094 AUD
Retailer 7$2,206 AUD
Retailer 9$2,598 AUD
MOH London$2,735 AUD

42 data points across 12 retailers

13 retailers$1,112 AUD to $2,598 AUD

A
Cheapest Retailer
-
$1,112 AUD
HK$6,100 HKD
A
Retailer 2
-
$1,543 AUD
SGD 1,465 SGD
View
A
Retailer 3
-
$1,544 AUD
$1,085 USD
View
A
Retailer 4
-
$1,682 AUD
$1,181 USD
View
A
Retailer 5
-
$1,694 AUD
$1,190 USD
View
A
Retailer 6
-
$1,742 AUD
£964 GBP
View
A
Retailer 7
-
$1,759 AUD
£973 GBP
View
A
Retailer 8
-
$1,895 AUD
View
Retailer 9
-
$1,965 AUD
View
Price last confirmed 28 days ago
A
Retailer 10
-
$2,094 AUD
€1,401 EUR
View
A
Retailer 11
-
$2,206 AUD
ZAR 25,032 ZAR
View
B+
Retailer 12
-
$2,598 AUD
SGD 2,466 SGD
View
Most Expensive
MOH London
15A271AEC · Oct 25
$2,735 AUD
£1,513 GBP
View
Price last confirmed 7 days ago
12 more retailers have this diamond
Prices start from $1,112 AUDSave up to $1,486 AUD

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
$1,112 AUD