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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 HK$6,829 HKD
As of November 1, 2026
Save HK$15,469 HKD (69%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$22,299 HKD 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 HK$6,829 to HK$22,299, a HK$15,469 spread on the same certified stone. NZ Jewellers lists it at HK$22,299. 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: HK$22,299 HKD|Low: HK$6,729 HKD|High: HK$22,299 HKD|Avg: HK$10,659 HKD
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 14HK$6,829 HKD
Retailer 7HK$8,364 HKD
Retailer 8HK$8,395 HKD
Retailer 4HK$8,435 HKD
Retailer 11HK$8,756 HKD
Retailer 10HK$8,857 HKD
Retailer 19HK$9,141 HKD
Retailer 20HK$9,141 HKD
Retailer 12HK$9,458 HKD
Retailer 18HK$9,494 HKD
Retailer 5HK$9,604 HKD
Retailer 6HK$10,161 HKD
Retailer 9HK$10,196 HKD
Retailer 13HK$10,426 HKD
Retailer 3HK$10,545 HKD
Retailer 2HK$11,525 HKD
Retailer 15HK$12,794 HKD
Retailer 16HK$13,521 HKD
Retailer 17HK$16,770 HKD
NZ JewellersHK$22,299 HKD

27 data points across 20 retailers

18 retailersHK$6,829 HKD to HK$22,299 HKD

A
Cheapest Retailer
-
HK$6,829 HKD
B+
Retailer 2
-
HK$8,395 HKD
$1,070 USD
View
B+
Retailer 3
-
HK$8,435 HKD
$1,075 USD
View
Final sale: no returns
B+
Retailer 4
-
HK$8,756 HKD
$1,116 USD
View
B+
Retailer 5
-
HK$9,141 HKD
$1,165 USD
View
B+
Retailer 6
-
HK$9,141 HKD
$1,165 USD
View
B+
Retailer 7
-
HK$9,458 HKD
SGD 1,629 SGD
View
B+
Retailer 8
-
HK$9,494 HKD
$1,210 USD
View
B+
Retailer 9
-
HK$9,604 HKD
$1,224 USD
View
B+
Retailer 10
-
HK$10,161 HKD
$1,295 USD
View
B+
Retailer 11
-
HK$10,196 HKD
$1,299 USD
View
B+
Retailer 12
-
HK$10,426 HKD
£1,046 GBP
View
B+
Retailer 13
-
HK$10,545 HKD
$1,344 USD
View
B
Retailer 14
-
HK$11,525 HKD
£1,157 GBP
View
B
Retailer 15
-
HK$12,794 HKD
€1,553 EUR
View
B
Retailer 16
-
HK$13,521 HKD
ZAR 27,840 ZAR
View
Retailer 17
-
HK$16,770 HKD
£1,683 GBP
View
Price last confirmed 7 days ago
Most Expensive
B
NZ Jewellers
5b064324-78e0-4dad-ba6f-27894bd43aef · Oct 30
HK$22,299 HKD
$2,842 USD
View
17 more retailers have this diamond
Prices start from HK$6,829 HKDSave up to HK$15,469 HKD

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
HK$6,829 HKD