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Marquise|Natural|GIA

1.21ct M SI2 Marquise Natural Diamond

GD • M/SI2 • GIA 3545642825

Certificate GIA 3545642825

Diamond specifications and retailer prices

From HK$8,755 HKD
$1,116 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: HK$8,755 HKD at The Diamond Guys
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at The Diamond Guys

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 3545642825. Listed at a single retailer as of November 6, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
M
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle43.39°
Pavilion angle41.33°
OriginNatural
Grading LabGIA
CertificateGIA 3545642825
Dimensions9.95 × 5.39 × 3.63 mm
L/W Ratio1.85
Top View
9.95 mm5.39 mm1.21 ctM / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3545642825
Side View
Table 59.0%Crown 43.39°Girdle: THK-VTKPavilion 41.33°Culet: NoneDepth 67.4%

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$11,415 HKD|Low: HK$5,350 HKD|High: HK$18,099 HKD|Avg: HK$10,931 HKD|-15.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
The Diamond Guys
August 20, 2026
Retailer 3HK$5,350 HKD
Retailer 2HK$8,112 HKD
The Diamond GuysHK$8,755 HKD
Retailer 5HK$10,897 HKD
Retailer 1HK$11,415 HKD
Retailer 4HK$13,305 HKD

63 data points across 6 retailers

1 retailer

B+
The Diamond Guys
1921518338 · Nov 6
HK$8,755 HKD
$1,116 USD
View

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$8,755 HKD