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Round|Natural|GIA

1.20ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1548587129

Certificate GIA 1548587129

Diamond specifications and retailer prices

From HK$23,191 HKD
As of November 4, 2026
Save HK$20,424 HKD (47%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: HK$52,597 HKD at NZ Jewellers · As of October 20, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1548587129. Listed at 23 retailers as of November 4, 2026, with a 88% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1548587129
Dimensions6.78 × 6.75 × 4.22 mm
L/W Ratio1.00
Girdle conditionSlightly Thick
Key to symbols
Crystal, Feather, Needle
Top View
6.78 mm6.75 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1548587129
Side View
Table 58.0%Crown 35.5°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.4%

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 4
Current: HK$34,101 HKD|Low: HK$23,191 HKD|High: HK$51,084 HKD|Avg: HK$32,114 HKD|+13.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 4HK$23,191 HKD
Retailer 9HK$23,363 HKD
Retailer 8HK$23,990 HKD
Retailer 2HK$26,757 HKD
Retailer 7HK$32,329 HKD
Retailer 3HK$33,003 HKD
Retailer 1HK$34,101 HKD
Retailer 6HK$36,640 HKD
Retailer 5HK$50,747 HKD

42 data points across 9 retailers

23 retailersHK$23,191 HKD to HK$43,615 HKD

B+
Cheapest Retailer
-
HK$23,191 HKD
B+
Retailer 2
-
HK$23,363 HKD
View
B+
Retailer 3
-
HK$23,591 HKD
View
B+
Retailer 4
-
HK$23,990 HKD
View
Final sale: no returns
Retailer 5
-
HK$24,272 HKD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
HK$25,973 HKD
View
Retailer 7
-
HK$26,334 HKD
View
Price last confirmed 16 days ago
Retailer 8
-
HK$26,757 HKD
View
Retailer 9
-
HK$27,353 HKD
View
Price last confirmed 22 days ago
Retailer 10
-
HK$27,353 HKD
View
Price last confirmed 18 days ago
Retailer 11
-
HK$28,403 HKD
View
Price last confirmed 23 days ago
B
Retailer 12
-
HK$29,735 HKD
View
B
Retailer 13
-
HK$29,735 HKD
View
Retailer 14
-
HK$31,553 HKD
View
Price last confirmed 17 days ago
Retailer 15
-
HK$32,329 HKD
View
Price last confirmed 30 days ago
B+
Retailer 16
-
HK$33,003 HKD
View
B
Retailer 17
-
HK$34,101 HKD
View
Retailer 18
-
HK$34,171 HKD
View
Price last confirmed 23 days ago
B
Retailer 19
-
HK$35,488 HKD
View
Retailer 20
-
HK$36,640 HKD
View
Price last confirmed 21 days ago
B
Retailer 21
-
HK$43,615 HKD
View
Retailer 22
-
HK$50,747 HKD
View
Price last confirmed 17 days ago
Most Expensive
NZ Jewellers
0a40bb14-684d-41c6-873e-4e48ee2e3721 · Oct 20
HK$52,597 HKD
$6,711 USD
View
Price last confirmed 17 days ago
22 more retailers have this diamond
Prices start from HK$23,191 HKDSave up to HK$20,424 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$23,191 HKD