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Marquise|Natural|GIA

1.20ct J SI1 Marquise Natural Diamond

ID • J/SI1 • GIA 6552516815

Certificate GIA 6552516815

Diamond specifications and retailer prices

From HK$16,850 HKD
As of November 1, 2026
Save HK$27,133 HKD (62%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: HK$43,983 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552516815. Listed at 23 retailers as of November 1, 2026, with prices from HK$16,850 to HK$43,983, a HK$27,133 spread on the same certified stone. NZ Jewellers lists it at HK$43,983. 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
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552516815
Dimensions10.47 × 5.51 × 3.50 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Indented Natural, Needle, Extra Facet
Top View
10.47 mm5.51 mm1.20 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6552516815
Side View
Table 61.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 63.6%

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 1
Current: HK$43,983 HKD|Low: HK$16,717 HKD|High: HK$44,846 HKD|Avg: HK$22,174 HKD|-1.9%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 6, 2026
Retailer 14HK$16,717 HKD
Retailer 5HK$16,850 HKD
Retailer 11HK$17,595 HKD
Retailer 8HK$17,705 HKD
Retailer 7HK$18,974 HKD
Retailer 4HK$19,006 HKD
Retailer 10HK$19,061 HKD
Retailer 20HK$19,061 HKD
Retailer 12HK$19,390 HKD
Retailer 9HK$19,413 HKD
Retailer 3HK$19,938 HKD
Retailer 15HK$20,409 HKD
Retailer 2HK$20,738 HKD
Retailer 21HK$21,302 HKD
Retailer 18HK$21,992 HKD
Retailer 17HK$22,133 HKD
Retailer 16HK$24,476 HKD
Retailer 19HK$25,675 HKD
Retailer 13HK$32,290 HKD
Retailer 6HK$36,851 HKD
NZ JewellersHK$43,983 HKD

20 data points across 21 retailers

23 retailersHK$16,850 HKD to HK$43,983 HKD

Retailer 1
-
HK$16,717 HKD
Price last confirmed 17 days ago
A
Retailer 2
-
HK$16,850 HKD
View
B+
Retailer 3
-
HK$17,595 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$17,705 HKD
View
A
Retailer 5
-
HK$18,974 HKD
View
A
Retailer 6
-
HK$19,006 HKD
View
A
Retailer 7
-
HK$19,061 HKD
View
Retailer 8
-
HK$19,061 HKD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
HK$19,390 HKD
View
B+
Retailer 10
-
HK$19,413 HKD
View
B+
Retailer 11
-
HK$19,938 HKD
View
B+
Retailer 12
-
HK$20,409 HKD
View
B+
Retailer 13
-
HK$20,738 HKD
View
B+
Retailer 14
-
HK$21,302 HKD
View
B+
Retailer 15
-
HK$21,992 HKD
View
B+
Retailer 16
-
HK$22,133 HKD
View
B+
Retailer 17
-
HK$22,399 HKD
View
Retailer 18
-
HK$24,029 HKD
View
Price last confirmed 31 days ago
B+
Retailer 19
-
HK$24,476 HKD
View
B
Retailer 20
-
HK$25,675 HKD
View
B
Retailer 21
-
HK$32,290 HKD
View
B
Retailer 22
-
HK$36,851 HKD
View
Most Expensive
B
NZ Jewellers
7263c95b-dd3a-487d-a178-0f0d2679b9a8 · Nov 5
HK$43,983 HKD
$5,612 USD
View
22 more retailers have this diamond
Prices start from HK$16,850 HKDSave up to HK$27,133 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 Marquise
HK$16,850 HKD