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Marquise|Natural|GIA

1.21ct M SI1 Marquise Natural Diamond

EX • M/SI1 • GIA 1242003834

Certificate GIA 1242003834

Diamond specifications and retailer prices

From HK$13,188 HKD
As of November 4, 2026
Save HK$7,822 HKD (37%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$21,010 HKD at Wholesale Diamonds Direct · As of November 3, 2026
View at Wholesale Diamonds Direct

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1242003834. Listed at 6 retailers as of November 3, 2026, with prices from HK$13,188 to HK$21,010, a HK$7,822 spread on the same certified stone. Wholesale Diamonds Direct lists it at HK$21,010. 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
M
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle39.41°
Pavilion angle38.47°
OriginNatural
Grading LabGIA
CertificateGIA 1242003834
Dimensions11.38 × 5.44 × 3.29 mm
L/W Ratio2.09
Culet sizeNone
Top View
11.38 mm5.44 mm1.21 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1242003834
Side View
Table 59.0%Crown 39.41°Girdle: STK-THKPavilion 38.47°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: HK$18,169 HKD|Low: HK$10,591 HKD|High: HK$23,852 HKD|Avg: HK$17,580 HKD|-15.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Wholesale Diamonds Direct
November 3, 2026
Retailer 5HK$10,591 HKD
Retailer 4HK$13,188 HKD
Retailer 2HK$16,224 HKD
Retailer 3HK$17,008 HKD
Retailer 1HK$18,169 HKD
Wholesale Diamonds DirectHK$21,010 HKD
Retailer 6HK$21,198 HKD

35 data points across 7 retailers

6 retailersHK$13,188 HKD to HK$21,010 HKD

A
Cheapest Retailer
-
HK$13,188 HKD
B+
Retailer 2
-
HK$16,224 HKD
View
B+
Retailer 3
-
HK$17,008 HKD
View
B
Retailer 4
-
HK$17,330 HKD
View
B
Retailer 5
-
HK$18,169 HKD
View
Most Expensive
B
Wholesale Diamonds Direct
539238965 · Nov 3
HK$21,010 HKD
$2,678 USD
View
5 more retailers have this diamond
Prices start from HK$13,188 HKDSave up to HK$7,822 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.

A
1.21ct Marquise
HK$13,188 HKD