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Radiant|Natural|GIA

0.81ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 2427523370

Certificate GIA 2427523370

Diamond specifications and retailer prices

From $1,113 SGD
HK$6,800 HKD
As of November 1, 2026
Save $2,521 SGD (69%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,635 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.81ct natural radiant diamond

This 0.81ct natural radiant sits in the just-under-one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2427523370. Listed at 18 retailers as of October 30, 2026, with prices from $1,113 to $3,635, a $2,521 spread on the same certified stone. NZ Jewellers lists it at $3,635. 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
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2427523370
Dimensions6.27 × 4.70 × 3.07 mm
L/W Ratio1.33
Top View
6.27 mm4.70 mm0.81 ctJ / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2427523370
Side View
Table 65.0%CrownGirdlePavilionCulet: NoneDepth 65.4%

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: $3,635 SGD|Low: $1,097 SGD|High: $3,635 SGD|Avg: $1,737 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 2, 2026
Retailer 14$1,113 SGD
Retailer 7$1,363 SGD
Retailer 8$1,368 SGD
Retailer 4$1,375 SGD
Retailer 11$1,427 SGD
Retailer 10$1,444 SGD
Retailer 19$1,490 SGD
Retailer 20$1,490 SGD
Retailer 12$1,542 SGD
Retailer 18$1,547 SGD
Retailer 5$1,565 SGD
Retailer 6$1,656 SGD
Retailer 9$1,662 SGD
Retailer 2$1,699 SGD
Retailer 3$1,719 SGD
Retailer 13$1,879 SGD
Retailer 15$2,085 SGD
Retailer 16$2,204 SGD
Retailer 17$2,734 SGD
NZ Jewellers$3,635 SGD

27 data points across 20 retailers

18 retailers$1,113 SGD to $3,635 SGD

A
Cheapest Retailer
-
$1,113 SGD
HK$6,800 HKD
B+
Retailer 2
-
$1,368 SGD
$1,070 USD
View
B+
Retailer 3
-
$1,375 SGD
$1,075 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,427 SGD
$1,116 USD
View
B+
Retailer 5
-
$1,490 SGD
$1,165 USD
View
B+
Retailer 6
-
$1,490 SGD
$1,165 USD
View
B+
Retailer 7
-
$1,542 SGD
View
B+
Retailer 8
-
$1,547 SGD
$1,210 USD
View
B+
Retailer 9
-
$1,565 SGD
$1,224 USD
View
B+
Retailer 10
-
$1,656 SGD
$1,295 USD
View
B+
Retailer 11
-
$1,662 SGD
$1,299 USD
View
B+
Retailer 12
-
$1,699 SGD
£1,046 GBP
View
B+
Retailer 13
-
$1,719 SGD
$1,344 USD
View
B
Retailer 14
-
$1,879 SGD
£1,157 GBP
View
B
Retailer 15
-
$2,085 SGD
€1,553 EUR
View
B
Retailer 16
-
$2,204 SGD
ZAR 27,840 ZAR
View
B
Retailer 17
-
$2,734 SGD
£1,683 GBP
View
Most Expensive
B
NZ Jewellers
5b064324-78e0-4dad-ba6f-27894bd43aef · Oct 30
$3,635 SGD
$2,842 USD
View
17 more retailers have this diamond
Prices start from $1,113 SGDSave up to $2,521 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
$1,113 SGD