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Marquise|Natural|GIA

1.21ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 6555372918

Certificate GIA 6555372918

Diamond specifications and retailer prices

From HK$20,534 HKD
As of November 5, 2026
Save HK$23,559 HKD (53%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$44,093 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded J 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 6555372918. Listed at 13 retailers as of November 5, 2026, with prices from HK$20,534 to HK$44,093, a HK$23,559 spread on the same certified stone. NZ Jewellers lists it at HK$44,093. 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

1.21
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle41.16°
Pavilion angle40.57°
OriginNatural
Grading LabGIA
CertificateGIA 6555372918
Dimensions10.55 × 5.49 × 3.51 mm
L/W Ratio1.92
Culet sizeNone
Top View
10.55 mm5.49 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6555372918
Side View
Table 57.0%Crown 41.16°Girdle: STK-VTKPavilion 40.57°Culet: NoneDepth 63.9%

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 5
Current: HK$44,093 HKD|Low: HK$16,435 HKD|High: HK$44,093 HKD|Avg: HK$21,548 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
November 6, 2026
Retailer 5HK$16,435 HKD
Retailer 6HK$17,854 HKD
Retailer 3HK$19,045 HKD
Retailer 10HK$20,534 HKD
Retailer 16HK$21,772 HKD
Retailer 12HK$22,117 HKD
Retailer 7HK$22,854 HKD
Retailer 13HK$22,924 HKD
Retailer 8HK$23,402 HKD
Retailer 11HK$25,197 HKD
Retailer 2HK$25,832 HKD
Retailer 14HK$25,903 HKD
Retailer 9HK$26,185 HKD
Retailer 4HK$28,473 HKD
Retailer 15HK$32,666 HKD
NZ JewellersHK$44,093 HKD

31 data points across 16 retailers

13 retailersHK$20,534 HKD to HK$44,093 HKD

Retailer 1
-
HK$17,854 HKD
Price last confirmed 21 days ago
Retailer 2
-
HK$19,045 HKD
View
Price last confirmed 18 days ago
B+
Retailer 3
-
HK$20,534 HKD
View
B+
Retailer 4
-
HK$22,117 HKD
View
B+
Retailer 5
-
HK$22,760 HKD
View
B+
Retailer 6
-
HK$22,924 HKD
View
B
Retailer 7
-
HK$25,197 HKD
View
B
Retailer 8
-
HK$25,832 HKD
View
B
Retailer 9
-
HK$25,903 HKD
View
B
Retailer 10
-
HK$26,185 HKD
View
Retailer 11
-
HK$28,473 HKD
View
Price last confirmed 19 days ago
B
Retailer 12
-
HK$32,666 HKD
View
Most Expensive
C
NZ Jewellers
bb823756-70fd-443a-9a0a-294775cc99d0 · Nov 5
HK$44,093 HKD
$5,626 USD
View
12 more retailers have this diamond
Prices start from HK$20,534 HKDSave up to HK$23,559 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+
1.21ct Marquise
HK$20,534 HKD