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Marquise|Natural|GIA

1.21ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 2245015553

Certificate GIA 2245015553

Diamond specifications and retailer prices

From HK$42,698 HKD
As of November 6, 2026
Save HK$10,930 HKD (20%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$53,628 HKD at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 1.21ct natural marquise diamond

This 1.21ct 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 2245015553. Listed at 5 retailers as of November 6, 2026, with prices from HK$42,698 to HK$53,628, a HK$10,930 spread on the same certified stone. 77 Diamonds lists it at HK$53,628. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle37.12°
Pavilion angle40.34°
OriginNatural
Grading LabGIA
CertificateGIA 2245015553
Dimensions10.18 × 5.50 × 3.61 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.18 mm5.50 mm1.21 ctG / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245015553
Side View
Table 56.0%Crown 37.12°Girdle: THN-VTKPavilion 40.34°Culet: NoneDepth 65.6%

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 6
Current: HK$53,628 HKD|Low: HK$27,431 HKD|High: HK$61,069 HKD|Avg: HK$45,014 HKD|-1.6%
77 Diamonds
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
November 7, 2026
Retailer 4HK$27,431 HKD
Retailer 10HK$34,539 HKD
Retailer 13HK$37,079 HKD
Retailer 11HK$37,439 HKD
Retailer 14HK$37,541 HKD
Retailer 7HK$43,819 HKD
Retailer 3HK$44,736 HKD
Retailer 5HK$47,416 HKD
Retailer 8HK$47,589 HKD
Retailer 2HK$47,926 HKD
77 DiamondsHK$53,628 HKD
Retailer 6HK$54,572 HKD
Retailer 9HK$56,704 HKD
Retailer 12HK$61,069 HKD

28 data points across 14 retailers

5 retailersHK$42,698 HKD to HK$53,628 HKD

B+
Cheapest Retailer
-
HK$42,698 HKD
B
Retailer 2
-
HK$43,819 HKD
View
B
Retailer 3
-
HK$44,869 HKD
View
B
Retailer 4
-
HK$47,926 HKD
View
Most Expensive
B
77 Diamonds
MQMBWCHSV5WM · Nov 7
HK$53,628 HKD
£5,388 GBP
View
4 more retailers have this diamond
Prices start from HK$42,698 HKDSave up to HK$10,930 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$42,698 HKD