Marquise|Natural|GIA

1.21ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 1553350131

Certificate GIA 1553350131

Diamond specifications and retailer prices

From HK$44,273 HKD
As of November 6, 2026
Save HK$11,921 HKD (21%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$56,194 HKD at Zales · As of November 5, 2026
View at Zales

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 1553350131. Listed at 10 retailers as of November 5, 2026, with prices from HK$44,273 to HK$56,194, a HK$11,921 spread on the same certified stone. Zales lists it at HK$56,194. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41.96°
OriginNatural
Grading LabGIA
CertificateGIA 1553350131
Dimensions10.76 × 5.58 × 3.55 mm
L/W Ratio1.93
Culet sizeNone
Top View
10.76 mm5.58 mm1.21 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553350131
Side View
Table 59.0%Crown 34.6°Girdle: MED-THKPavilion 41.96°Culet: NoneDepth 63.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$49,540 HKD|Low: HK$27,784 HKD|High: HK$59,110 HKD|Avg: HK$38,878 HKD
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
Zales
November 5, 2026
Retailer 5HK$27,784 HKD
Retailer 12HK$31,138 HKD
Retailer 13HK$32,008 HKD
Retailer 9HK$32,745 HKD
Retailer 6HK$33,066 HKD
Retailer 8HK$33,952 HKD
Retailer 10HK$36,789 HKD
Retailer 2HK$39,015 HKD
Retailer 3HK$39,187 HKD
Retailer 7HK$39,689 HKD
Retailer 1HK$49,540 HKD
Retailer 11HK$51,092 HKD
Retailer 4HK$55,183 HKD
ZalesHK$56,194 HKD

31 data points across 14 retailers

10 retailersHK$44,273 HKD to HK$56,194 HKD

Retailer 1
-
HK$32,008 HKD
Price last confirmed 17 days ago
Retailer 2
-
HK$32,745 HKD
View
Price last confirmed 15 days ago
Retailer 3
-
HK$33,066 HKD
View
Price last confirmed 15 days ago
Retailer 4
-
HK$33,952 HKD
View
Price last confirmed 15 days ago
Retailer 5
-
HK$36,789 HKD
View
Price last confirmed 16 days ago
Retailer 6
-
HK$39,015 HKD
View
Price last confirmed 16 days ago
B
Retailer 7
-
HK$44,273 HKD
View
B
Retailer 8
-
HK$49,540 HKD
View
Retailer 9
-
HK$55,183 HKD
View
Price last confirmed 17 days ago
Most Expensive
B
Zales
529733725 · Nov 5
HK$56,194 HKD
$7,170 USD
View
9 more retailers have this diamond
Prices start from HK$44,273 HKDSave up to HK$11,921 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$44,273 HKD