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Marquise|Natural|GIA

1.20ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 5553986283

Certificate GIA 5553986283

Diamond specifications and retailer prices

From HK$18,755 HKD
As of November 6, 2026
Save HK$22,940 HKD (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$44,783 HKD at NZ Jewellers · As of September 27, 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 5553986283. Listed at 18 retailers as of November 1, 2026, with a 122% 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553986283
Dimensions10.69 × 5.62 × 3.41 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Cavity, Indented Natural, Natural
Top View
10.69 mm5.62 mm1.20 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5553986283
Side View
Table 57.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 60.7%

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 6
Current: HK$25,793 HKD|Low: HK$18,653 HKD|High: HK$42,142 HKD|Avg: HK$25,375 HKD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 12HK$18,755 HKD
Retailer 5HK$19,445 HKD
Retailer 9HK$22,587 HKD
Retailer 4HK$23,011 HKD
Retailer 6HK$24,515 HKD
Retailer 2HK$24,931 HKD
Retailer 1HK$25,793 HKD
Retailer 10HK$25,895 HKD
Retailer 3HK$26,052 HKD
Retailer 7HK$26,130 HKD
Retailer 8HK$29,022 HKD
Retailer 11HK$41,695 HKD

28 data points across 12 retailers

18 retailersHK$18,755 HKD to HK$41,695 HKD

A
Cheapest Retailer
-
HK$18,755 HKD
A
Retailer 2
-
HK$19,445 HKD
View
A
Retailer 3
-
HK$22,587 HKD
View
B+
Retailer 4
-
HK$23,011 HKD
View
Final sale: no returns
B+
Retailer 5
-
HK$23,779 HKD
View
B+
Retailer 6
-
HK$24,515 HKD
View
Retailer 7
-
HK$24,931 HKD
View
Price last confirmed 22 days ago
B+
Retailer 8
-
HK$25,252 HKD
View
Retailer 9
-
HK$25,707 HKD
View
Price last confirmed 42 days ago
Retailer 10
-
HK$25,707 HKD
View
Price last confirmed 34 days ago
B+
Retailer 11
-
HK$25,793 HKD
View
B+
Retailer 12
-
HK$25,895 HKD
View
B+
Retailer 13
-
HK$26,052 HKD
View
B+
Retailer 14
-
HK$26,130 HKD
View
B+
Retailer 15
-
HK$29,022 HKD
View
Retailer 16
-
HK$29,657 HKD
View
Price last confirmed 40 days ago
B
Retailer 17
-
HK$41,695 HKD
View
Most Expensive
NZ Jewellers
53aac2cf-aa17-4cbf-abb5-3d74a658046a · Sep 27
HK$44,783 HKD
$5,714 USD
View
Price last confirmed 40 days ago
17 more retailers have this diamond
Prices start from HK$18,755 HKDSave up to HK$22,940 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$18,755 HKD