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Round|Natural|GIA

1.20ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2507070551

Certificate GIA 2507070551

Diamond specifications and retailer prices

From HK$11,733 HKD
As of November 6, 2026
Save HK$26,420 HKD (69%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$38,152 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2507070551. Listed at 19 retailers as of November 5, 2026, with prices from HK$11,733 to HK$38,152, a HK$26,420 spread on the same certified stone. NZ Jewellers lists it at HK$38,152. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2507070551
Dimensions6.77 × 6.73 × 4.26 mm
L/W Ratio1.01
Star length55%
Lower girdle75%
Top View
6.77 mm6.73 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2507070551
Side View
Table 56.0%Crown 36°Girdle: Sli. ThickPavilion 41.2°Culet: NoneDepth 63.3%

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 6
Current: HK$38,152 HKD|Low: HK$11,631 HKD|High: HK$38,152 HKD|Avg: HK$17,817 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
November 6, 2026
Retailer 16HK$11,733 HKD
Retailer 2HK$11,834 HKD
Retailer 15HK$13,755 HKD
Retailer 7HK$14,131 HKD
Retailer 10HK$14,852 HKD
Retailer 11HK$14,962 HKD
Retailer 8HK$15,542 HKD
Retailer 6HK$15,643 HKD
Retailer 17HK$15,643 HKD
Retailer 18HK$16,364 HKD
Retailer 9HK$16,380 HKD
Retailer 5HK$16,717 HKD
Retailer 12HK$16,890 HKD
Retailer 4HK$18,050 HKD
Retailer 13HK$20,095 HKD
Retailer 3HK$22,775 HKD
Retailer 14HK$27,329 HKD
NZ JewellersHK$38,152 HKD

23 data points across 18 retailers

19 retailersHK$11,733 HKD to HK$38,152 HKD

A
Cheapest Retailer
-
HK$11,733 HKD
A
Retailer 2
-
HK$11,834 HKD
View
A
Retailer 3
-
HK$13,755 HKD
View
A
Retailer 4
-
HK$14,131 HKD
View
Retailer 5
-
HK$14,186 HKD
View
Price last confirmed 109 days ago
Retailer 6
-
HK$14,852 HKD
View
Price last confirmed 13 days ago
A
Retailer 7
-
HK$14,962 HKD
View
A
Retailer 8
-
HK$15,542 HKD
View
B+
Retailer 9
-
HK$15,643 HKD
View
Retailer 10
-
HK$15,643 HKD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
HK$16,364 HKD
View
Retailer 12
-
HK$16,380 HKD
View
Price last confirmed 10 days ago
B+
Retailer 13
-
HK$16,717 HKD
View
B+
Retailer 14
-
HK$16,890 HKD
View
B+
Retailer 15
-
HK$18,050 HKD
View
B+
Retailer 16
-
HK$20,095 HKD
View
B
Retailer 17
-
HK$22,775 HKD
View
B
Retailer 18
-
HK$27,329 HKD
View
Most Expensive
C
NZ Jewellers
f681003a-2f6a-4e28-bfee-41408dd3dba0 · Nov 5
HK$38,152 HKD
$4,868 USD
View
18 more retailers have this diamond
Prices start from HK$11,733 HKDSave up to HK$26,420 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 Round
HK$11,733 HKD