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Marquise|Natural|GIA

1.21ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 2245000215

Certificate GIA 2245000215

Diamond specifications and retailer prices

From HK$29,751 HKD
As of November 4, 2026
Save HK$23,559 HKD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$53,310 HKD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2245000215. Listed at 13 retailers as of November 4, 2026, with prices from HK$29,751 to HK$53,310, a HK$23,559 spread on the same certified stone. Helzberg Diamonds lists it at HK$53,310. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.01°
Pavilion angle37.63°
OriginNatural
Grading LabGIA
CertificateGIA 2245000215
Dimensions10.59 × 5.59 × 3.39 mm
L/W Ratio1.89
Culet sizeNone
Top View
10.59 mm5.59 mm1.21 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245000215
Side View
Table 58.0%Crown 40.01°Girdle: MED-THKPavilion 37.63°Culet: NoneDepth 60.7%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: HK$53,310 HKD|Low: HK$29,751 HKD|High: HK$55,512 HKD|Avg: HK$38,197 HKD|-4.0%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 8HK$29,751 HKD
Retailer 6HK$30,472 HKD
Retailer 4HK$30,487 HKD
Retailer 9HK$31,514 HKD
Retailer 12HK$32,478 HKD
Retailer 7HK$34,320 HKD
Retailer 10HK$37,620 HKD
Retailer 11HK$37,847 HKD
Retailer 5HK$38,247 HKD
Retailer 2HK$41,272 HKD
Retailer 3HK$53,051 HKD
Helzberg DiamondsHK$53,310 HKD

35 data points across 12 retailers

13 retailersHK$29,751 HKD to HK$53,310 HKD

A
Cheapest Retailer
-
HK$29,751 HKD
A
Retailer 2
-
HK$30,472 HKD
View
A
Retailer 3
-
HK$30,487 HKD
View
B+
Retailer 4
-
HK$31,514 HKD
View
B+
Retailer 5
-
HK$32,478 HKD
View
B+
Retailer 6
-
HK$34,320 HKD
View
B+
Retailer 7
-
HK$37,620 HKD
View
B+
Retailer 8
-
HK$37,847 HKD
View
B+
Retailer 9
-
HK$38,247 HKD
View
B+
Retailer 10
-
HK$39,689 HKD
View
B+
Retailer 11
-
HK$41,272 HKD
View
B
Retailer 12
-
HK$53,051 HKD
View
Most Expensive
B
Helzberg Diamonds
XZRIIKLGGGIHL · Nov 6
HK$53,310 HKD
$6,802 USD
View
12 more retailers have this diamond
Prices start from HK$29,751 HKDSave up to HK$23,559 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$29,751 HKD