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Marquise|Natural|GIA

1.20ct I SI2 Marquise Natural Diamond

ID • I/SI2 • GIA 6541821320

Certificate GIA 6541821320

Diamond specifications and retailer prices

From HK$26,310 HKD
As of November 6, 2026
Save HK$36,483 HKD (58%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$62,793 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541821320. Listed at 22 retailers as of November 5, 2026, with prices from HK$26,310 to HK$62,793, a HK$36,483 spread on the same certified stone. NZ Jewellers lists it at HK$62,793. 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.17°
Pavilion angle41.24°
OriginNatural
Grading LabGIA
CertificateGIA 6541821320
Dimensions10.31 × 5.49 × 3.59 mm
L/W Ratio1.88
Top View
10.31 mm5.49 mm1.20 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6541821320
Side View
Table 57.0%Crown 38.17°Girdle: Slightly ThickPavilion 41.24°Culet: NoneDepth 65.3%

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$62,793 HKD|Low: HK$26,310 HKD|High: HK$62,793 HKD|Avg: HK$38,231 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
November 7, 2026
Retailer 10HK$26,310 HKD
Retailer 6HK$28,732 HKD
Retailer 11HK$29,234 HKD
Retailer 4HK$29,743 HKD
Retailer 5HK$30,135 HKD
Retailer 3HK$32,651 HKD
Retailer 14HK$32,651 HKD
Retailer 15HK$32,651 HKD
Retailer 7HK$33,340 HKD
Retailer 8HK$35,441 HKD
Retailer 2HK$35,488 HKD
Retailer 13HK$37,674 HKD
Retailer 9HK$40,559 HKD
Retailer 12HK$57,409 HKD
NZ JewellersHK$62,793 HKD

35 data points across 15 retailers

22 retailersHK$26,310 HKD to HK$62,793 HKD

B+
Cheapest Retailer
-
HK$26,310 HKD
B+
Retailer 2
-
HK$28,732 HKD
View
B+
Retailer 3
-
HK$29,234 HKD
View
B+
Retailer 4
-
HK$29,743 HKD
View
B+
Retailer 5
-
HK$30,135 HKD
View
Final sale: no returns
B
Retailer 6
-
HK$32,525 HKD
View
Retailer 7
-
HK$32,651 HKD
View
Price last confirmed 9 days ago
B
Retailer 8
-
HK$32,651 HKD
View
B
Retailer 9
-
HK$32,651 HKD
View
Retailer 10
-
HK$32,651 HKD
View
Price last confirmed 30 days ago
B
Retailer 11
-
HK$33,340 HKD
View
B
Retailer 12
-
HK$35,347 HKD
View
B
Retailer 13
-
HK$35,347 HKD
View
B+
Retailer 14
-
HK$35,441 HKD
View
B+
Retailer 15
-
HK$35,488 HKD
View
B
Retailer 16
-
HK$36,522 HKD
View
B
Retailer 17
-
HK$37,674 HKD
View
Retailer 18
-
HK$37,674 HKD
View
Price last confirmed 24 days ago
B
Retailer 19
-
HK$40,559 HKD
View
Retailer 20
-
HK$40,754 HKD
View
Price last confirmed 23 days ago
B
Retailer 21
-
HK$57,409 HKD
View
Most Expensive
B
NZ Jewellers
fb7d9bd2-31bc-48ef-bd72-849a60980f7e · Nov 5
HK$62,793 HKD
$8,012 USD
View
21 more retailers have this diamond
Prices start from HK$26,310 HKDSave up to HK$36,483 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 Marquise
HK$26,310 HKD