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Marquise|Natural|GIA

1.20ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 6542456377

Certificate GIA 6542456377

Diamond specifications and retailer prices

From HK$22,070 HKD
As of November 6, 2026
Save HK$28,763 HKD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$50,833 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542456377. Listed at 20 retailers as of November 5, 2026, with prices from HK$22,070 to HK$50,833, a HK$28,763 spread on the same certified stone. NZ Jewellers lists it at HK$50,833. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle38.23°
Pavilion angle39.12°
OriginNatural
Grading LabGIA
CertificateGIA 6542456377
Dimensions10.40 × 5.53 × 3.46 mm
L/W Ratio1.88
Girdle conditionVery Thick
Key to symbols
Feather, Crystal, Needle
Top View
10.40 mm5.53 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6542456377
Side View
Table 60.0%Crown 38.23°Girdle: THK-VTKPavilion 39.12°Culet: NoneDepth 62.7%

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$50,833 HKD|Low: HK$22,070 HKD|High: HK$50,833 HKD|Avg: HK$32,002 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
November 6, 2026
Retailer 8HK$22,070 HKD
Retailer 6HK$23,473 HKD
Retailer 12HK$23,904 HKD
Retailer 13HK$26,436 HKD
Retailer 14HK$26,436 HKD
Retailer 4HK$27,454 HKD
Retailer 2HK$28,309 HKD
Retailer 5HK$29,978 HKD
Retailer 7HK$30,017 HKD
Retailer 3HK$30,503 HKD
Retailer 11HK$34,014 HKD
Retailer 9HK$35,613 HKD
Retailer 10HK$48,670 HKD
NZ JewellersHK$50,833 HKD

36 data points across 14 retailers

20 retailersHK$22,070 HKD to HK$50,833 HKD

B+
Cheapest Retailer
-
HK$22,070 HKD
B+
Retailer 2
-
HK$23,473 HKD
View
B+
Retailer 3
-
HK$23,904 HKD
View
B
Retailer 4
-
HK$24,633 HKD
View
B
Retailer 5
-
HK$25,511 HKD
View
B
Retailer 6
-
HK$26,436 HKD
View
Retailer 7
-
HK$26,436 HKD
View
Price last confirmed 8 days ago
B
Retailer 8
-
HK$26,530 HKD
View
B
Retailer 9
-
HK$27,282 HKD
View
B
Retailer 10
-
HK$27,454 HKD
View
B
Retailer 11
-
HK$28,309 HKD
View
B
Retailer 12
-
HK$29,978 HKD
View
Retailer 13
-
HK$29,978 HKD
View
Price last confirmed 28 days ago
B
Retailer 14
-
HK$30,017 HKD
View
B
Retailer 15
-
HK$30,503 HKD
View
Retailer 16
-
HK$33,042 HKD
View
Price last confirmed 22 days ago
B
Retailer 17
-
HK$34,014 HKD
View
B
Retailer 18
-
HK$35,613 HKD
View
B
Retailer 19
-
HK$48,670 HKD
View
Most Expensive
C
NZ Jewellers
11a171f1-1057-4f87-b4c5-efd38b187b1f · Nov 5
HK$50,833 HKD
$6,486 USD
View
19 more retailers have this diamond
Prices start from HK$22,070 HKDSave up to HK$28,763 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$22,070 HKD