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Round|Natural|GIA

1.20ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1529681089

Certificate GIA 1529681089

Diamond specifications and retailer prices

From HK$20,565 HKD
As of November 6, 2026
Save HK$26,655 HKD (56%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: HK$47,220 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1529681089. Listed at 27 retailers as of November 5, 2026, with prices from HK$20,565 to HK$47,220, a HK$26,655 spread on the same certified stone. NZ Jewellers lists it at HK$47,220. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1529681089
Dimensions6.76 × 6.72 × 4.23 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional clouds are not shown. Additional pinpoints are not shown.
Key to symbols
Crystal, Cloud, Feather, Needle, Pinpoint
Top View
6.76 mm6.72 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1529681089
Side View
Table 57.0%Crown 36°Girdle: STK-STKPavilion 40.6°Culet: NoneDepth 62.8%

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 6
Current: HK$47,220 HKD|Low: HK$20,362 HKD|High: HK$47,988 HKD|Avg: HK$27,915 HKD|-1.6%
NZ Jewellers
Retailer 2
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Retailer 8
Retailer 9
Retailer 10
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Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
November 7, 2026
Retailer 24HK$20,565 HKD
Retailer 5HK$21,271 HKD
Retailer 7HK$21,357 HKD
Retailer 25HK$21,490 HKD
Retailer 4HK$21,647 HKD
Retailer 14HK$22,235 HKD
Retailer 18HK$22,454 HKD
Retailer 8HK$22,642 HKD
Retailer 10HK$23,865 HKD
Retailer 13HK$24,006 HKD
Retailer 9HK$24,555 HKD
Retailer 15HK$24,555 HKD
Retailer 17HK$25,095 HKD
Retailer 12HK$25,503 HKD
Retailer 19HK$25,934 HKD
Retailer 2HK$27,878 HKD
Retailer 11HK$27,901 HKD
Retailer 16HK$27,901 HKD
Retailer 3HK$28,332 HKD
Retailer 6HK$28,842 HKD
Retailer 21HK$29,586 HKD
Retailer 20HK$33,082 HKD
Retailer 23HK$39,124 HKD
Retailer 22HK$45,206 HKD
NZ JewellersHK$47,220 HKD

22 data points across 25 retailers

27 retailersHK$20,565 HKD to HK$47,220 HKD

A
Cheapest Retailer
-
HK$20,565 HKD
A
Retailer 2
-
HK$21,271 HKD
View
A
Retailer 3
-
HK$21,357 HKD
View
A
Retailer 4
-
HK$21,490 HKD
View
A
Retailer 5
-
HK$21,647 HKD
View
A
Retailer 6
-
HK$22,235 HKD
View
Final sale: no returns
Retailer 7
-
HK$22,454 HKD
View
Price last confirmed 17 days ago
A
Retailer 8
-
HK$22,642 HKD
View
B+
Retailer 9
-
HK$23,865 HKD
View
Retailer 10
-
HK$24,006 HKD
View
B+
Retailer 11
-
HK$24,555 HKD
View
Retailer 12
-
HK$24,555 HKD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
HK$25,095 HKD
View
B+
Retailer 14
-
HK$25,503 HKD
View
B+
Retailer 15
-
HK$25,934 HKD
View
B+
Retailer 16
-
HK$27,878 HKD
View
B+
Retailer 17
-
HK$27,901 HKD
View
B+
Retailer 18
-
HK$27,901 HKD
View
B+
Retailer 19
-
HK$28,332 HKD
View
B+
Retailer 20
-
HK$28,842 HKD
View
Retailer 21
-
HK$29,296 HKD
View
Price last confirmed 34 days ago
B+
Retailer 22
-
HK$29,586 HKD
View
Retailer 23
-
HK$30,966 HKD
View
Price last confirmed 15 days ago
B+
Retailer 24
-
HK$33,082 HKD
View
B
Retailer 25
-
HK$39,124 HKD
View
B
Retailer 26
-
HK$45,206 HKD
View
Most Expensive
B
NZ Jewellers
6ce402cb-b0dc-4558-a70e-96c4bf8bd3c9 · Nov 5
HK$47,220 HKD
$6,025 USD
View
26 more retailers have this diamond
Prices start from HK$20,565 HKDSave up to HK$26,655 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$20,565 HKD