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Marquise|Natural|GIA

1.20ct E SI1 Marquise Natural Diamond

ID • E/SI1 • GIA 3555986306

Certificate GIA 3555986306

Diamond specifications and retailer prices

From HK$39,461 HKD
As of November 5, 2026
Save HK$18,523 HKD (32%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$74,820 HKD at NZ Jewellers · As of September 20, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555986306. Listed at 15 retailers as of November 5, 2026, with a 47% 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
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3555986306
Dimensions10.13 × 5.51 × 3.47 mm
L/W Ratio1.84
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural, Natural
Top View
10.13 mm5.51 mm1.20 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3555986306
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.9%

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$57,984 HKD|Low: HK$33,232 HKD|High: HK$72,097 HKD|Avg: HK$46,406 HKD|+35.7%
Retailer 1
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
November 6, 2026
Retailer 6HK$33,232 HKD
Retailer 15HK$35,782 HKD
Retailer 7HK$37,845 HKD
Retailer 10HK$39,461 HKD
Retailer 5HK$40,803 HKD
Retailer 13HK$41,815 HKD
Retailer 14HK$44,043 HKD
Retailer 8HK$44,482 HKD
Retailer 17HK$44,733 HKD
Retailer 2HK$45,039 HKD
Retailer 9HK$45,941 HKD
Retailer 11HK$48,844 HKD
Retailer 16HK$50,249 HKD
Retailer 4HK$53,810 HKD
Retailer 1HK$57,984 HKD
Retailer 12HK$62,613 HKD
Retailer 3HK$72,097 HKD

22 data points across 17 retailers

15 retailersHK$39,461 HKD to HK$57,984 HKD

Retailer 1
-
HK$33,232 HKD
Price last confirmed 29 days ago
B+
Retailer 2
-
HK$39,461 HKD
View
B+
Retailer 3
-
HK$40,803 HKD
View
Retailer 4
-
HK$42,647 HKD
View
Price last confirmed 30 days ago
Retailer 5
-
HK$44,482 HKD
View
Price last confirmed 31 days ago
Retailer 6
-
HK$44,733 HKD
View
Price last confirmed 44 days ago
Retailer 7
-
HK$45,039 HKD
View
Price last confirmed 33 days ago
B
Retailer 8
-
HK$47,848 HKD
View
B
Retailer 9
-
HK$48,844 HKD
View
Retailer 10
-
HK$51,614 HKD
View
Price last confirmed 45 days ago
Retailer 11
-
HK$53,810 HKD
View
Price last confirmed 42 days ago
B
Retailer 12
-
HK$57,984 HKD
View
Retailer 13
-
HK$62,613 HKD
View
Price last confirmed 30 days ago
Retailer 14
-
HK$72,097 HKD
View
Price last confirmed 32 days ago
Most Expensive
NZ Jewellers
b2e0996d-3420-43f7-9cac-e9fec48854ad · Sep 20
HK$74,820 HKD
$9,537 USD
View
Price last confirmed 46 days ago
14 more retailers have this diamond
Prices start from HK$39,461 HKDSave up to HK$18,523 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$39,461 HKD