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Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1498706583

Certificate GIA 1498706583

Diamond specifications and retailer prices

From HK$19,084 HKD
As of November 6, 2026
Save HK$23,160 HKD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$42,244 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1498706583. Listed at 21 retailers as of November 5, 2026, with prices from HK$19,084 to HK$42,244, a HK$23,160 spread on the same certified stone. NZ Jewellers lists it at HK$42,244. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1498706583
Dimensions6.74 × 6.78 × 4.22 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Top View
6.74 mm6.78 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1498706583
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$20,079 HKD|Low: HK$17,485 HKD|High: HK$41,037 HKD|Avg: HK$25,839 HKD|+14.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2HK$19,084 HKD
Retailer 1HK$20,079 HKD
Retailer 9HK$20,636 HKD
Retailer 3HK$22,595 HKD
Retailer 4HK$24,931 HKD
Retailer 5HK$25,103 HKD
Retailer 10HK$25,903 HKD
Retailer 7HK$26,467 HKD
Retailer 6HK$29,594 HKD
Retailer 8HK$40,441 HKD

42 data points across 10 retailers

21 retailersHK$19,084 HKD to HK$42,244 HKD

B+
Cheapest Retailer
-
HK$19,084 HKD
B+
Retailer 2
-
HK$19,108 HKD
View
B+
Retailer 3
-
HK$19,672 HKD
View
B+
Retailer 4
-
HK$20,079 HKD
View
Final sale: no returns
Retailer 5
-
HK$20,636 HKD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
HK$21,553 HKD
View
Retailer 7
-
HK$21,968 HKD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
HK$21,968 HKD
View
B
Retailer 9
-
HK$22,219 HKD
View
B
Retailer 10
-
HK$22,595 HKD
View
B
Retailer 11
-
HK$24,688 HKD
View
B
Retailer 12
-
HK$24,688 HKD
View
B+
Retailer 13
-
HK$24,931 HKD
View
B
Retailer 14
-
HK$25,103 HKD
View
B
Retailer 15
-
HK$25,330 HKD
View
B
Retailer 16
-
HK$25,472 HKD
View
Retailer 17
-
HK$25,903 HKD
View
Price last confirmed 31 days ago
B
Retailer 18
-
HK$26,467 HKD
View
B
Retailer 19
-
HK$29,594 HKD
View
B
Retailer 20
-
HK$40,441 HKD
View
Most Expensive
B
NZ Jewellers
39fc103d-9290-4738-bcea-93388e39eadb · Nov 5
HK$42,244 HKD
$5,390 USD
View
20 more retailers have this diamond
Prices start from HK$19,084 HKDSave up to HK$23,160 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.

B+
1.20ct Round
HK$19,084 HKD