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Radiant|Natural|GIA

1.20ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 6565507610

Certificate GIA 6565507610

Diamond specifications and retailer prices

From HK$12,453 HKD
As of November 2, 2026
Save HK$24,400 HKD (66%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$36,853 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic 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 6565507610. Listed at 16 retailers as of October 30, 2026, with prices from HK$12,453 to HK$36,853, a HK$24,400 spread on the same certified stone. NZ Jewellers lists it at HK$36,853. 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

1.20
Carat
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6565507610
Dimensions6.90 × 5.30 × 3.70 mm
L/W Ratio1.30
Girdle conditionPolished
Top View
6.90 mm5.30 mm1.20 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565507610
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.8%

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 2
Current: HK$36,853 HKD|Low: HK$12,252 HKD|High: HK$38,171 HKD|Avg: HK$20,106 HKD|-3.5%
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
November 2, 2026
Retailer 2HK$12,453 HKD
Retailer 4HK$13,731 HKD
Retailer 14HK$15,575 HKD
Retailer 12HK$16,367 HKD
Retailer 13HK$16,801 HKD
Retailer 8HK$17,209 HKD
Retailer 9HK$17,296 HKD
Retailer 6HK$17,418 HKD
Retailer 11HK$17,672 HKD
Retailer 7HK$17,693 HKD
Retailer 15HK$18,752 HKD
Retailer 16HK$21,669 HKD
Retailer 10HK$22,977 HKD
Retailer 5HK$25,680 HKD
Retailer 3HK$31,050 HKD
NZ JewellersHK$36,853 HKD

18 data points across 16 retailers

16 retailersHK$12,453 HKD to HK$36,853 HKD

A
Cheapest Retailer
-
HK$12,453 HKD
A
Retailer 2
-
HK$13,731 HKD
$1,750 USD
View
A
Retailer 3
-
HK$15,575 HKD
$1,985 USD
View
B+
Retailer 4
-
HK$16,367 HKD
$2,086 USD
View
Final sale: no returns
B+
Retailer 5
-
HK$16,801 HKD
£1,686 GBP
View
B+
Retailer 6
-
HK$17,209 HKD
SGD 2,964 SGD
View
B+
Retailer 7
-
HK$17,296 HKD
£1,736 GBP
View
B+
Retailer 8
-
HK$17,418 HKD
$2,220 USD
View
B+
Retailer 9
-
HK$17,672 HKD
$2,252 USD
View
B+
Retailer 10
-
HK$17,693 HKD
$2,255 USD
View
B+
Retailer 11
-
HK$18,752 HKD
$2,390 USD
View
B+
Retailer 12
-
HK$21,669 HKD
ZAR 44,617 ZAR
View
B
Retailer 13
-
HK$22,977 HKD
€2,789 EUR
View
B
Retailer 14
-
HK$25,680 HKD
$3,273 USD
View
B
Retailer 15
-
HK$31,050 HKD
£3,116 GBP
View
Most Expensive
B
NZ Jewellers
af07e346-e64d-4d8c-b76f-538465fdd05d · Oct 30
HK$36,853 HKD
$4,697 USD
View
15 more retailers have this diamond
Prices start from HK$12,453 HKDSave up to HK$24,400 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
1.20ct Radiant
HK$12,453 HKD