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Marquise|Natural|GIA

1.20ct G SI1 Marquise Natural Diamond

ID • G/SI1 • GIA 6545625677

Certificate GIA 6545625677

Diamond specifications and retailer prices

From HK$51,194 HKD
As of November 6, 2026
Save HK$30,981 HKD (38%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$101,863 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 G 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 6545625677. Listed at 12 retailers as of November 4, 2026, with a 61% 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
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6545625677
Dimensions11.89 × 5.23 × 3.31 mm
L/W Ratio2.27
Top View
11.89 mm5.23 mm1.20 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6545625677
Side View
Table 59.0%CrownGirdle: ThickPavilionCulet: NoneDepth 63.3%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
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$101,863 HKD|Low: HK$50,543 HKD|High: HK$101,863 HKD|Avg: HK$63,523 HKD|+1.7%
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
November 7, 2026
Retailer 9HK$51,194 HKD
Retailer 5HK$52,338 HKD
Retailer 8HK$52,644 HKD
Retailer 7HK$56,194 HKD
Retailer 6HK$56,852 HKD
Retailer 10HK$57,660 HKD
Retailer 4HK$58,193 HKD
Retailer 11HK$60,552 HKD
Retailer 2HK$61,430 HKD
Retailer 3HK$66,030 HKD
Retailer 12HK$74,306 HKD
Retailer 13HK$82,175 HKD
NZ JewellersHK$101,863 HKD

16 data points across 13 retailers

12 retailersHK$51,194 HKD to HK$82,175 HKD

B
Cheapest Retailer
-
HK$51,194 HKD
B
Retailer 2
-
HK$52,644 HKD
View
B
Retailer 3
-
HK$56,194 HKD
View
B
Retailer 4
-
HK$56,852 HKD
View
B
Retailer 5
-
HK$57,660 HKD
View
Retailer 6
-
HK$58,193 HKD
View
Price last confirmed 35 days ago
B
Retailer 7
-
HK$60,552 HKD
View
B
Retailer 8
-
HK$61,430 HKD
View
B
Retailer 9
-
HK$66,030 HKD
View
B
Retailer 10
-
HK$74,306 HKD
View
B
Retailer 11
-
HK$82,175 HKD
View
Most Expensive
NZ Jewellers
7c049642-ce40-4b7b-9fc2-ef4b83bc0466 · Nov 5
HK$101,863 HKD
$12,997 USD
View
Price under review
11 more retailers have this diamond
Prices start from HK$51,194 HKDSave up to HK$30,981 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$51,194 HKD