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Marquise|Natural|GIA

1.21ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 2245015530

Certificate GIA 2245015530

Diamond specifications and retailer prices

From HK$21,341 HKD
As of November 4, 2026
Save HK$19,241 HKD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$40,582 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2245015530. Listed at 12 retailers as of November 4, 2026, with prices from HK$21,341 to HK$40,582, a HK$19,241 spread on the same certified stone. Helzberg Diamonds lists it at HK$40,582. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle39.86°
Pavilion angle37.96°
OriginNatural
Grading LabGIA
CertificateGIA 2245015530
Dimensions10.63 × 5.56 × 3.40 mm
L/W Ratio1.91
Culet sizeNone
Top View
10.63 mm5.56 mm1.21 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2245015530
Side View
Table 58.0%Crown 39.86°Girdle: MED-THKPavilion 37.96°Culet: NoneDepth 61.1%

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$40,582 HKD|Low: HK$21,341 HKD|High: HK$44,446 HKD|Avg: HK$28,377 HKD|-8.7%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 8HK$21,341 HKD
Retailer 7HK$21,553 HKD
Retailer 5HK$21,859 HKD
Retailer 9HK$23,011 HKD
Retailer 2HK$24,915 HKD
Retailer 3HK$25,707 HKD
Retailer 11HK$27,462 HKD
Retailer 10HK$28,144 HKD
Retailer 4HK$28,387 HKD
Retailer 6HK$38,301 HKD
Helzberg DiamondsHK$40,582 HKD

38 data points across 11 retailers

12 retailersHK$21,341 HKD to HK$40,582 HKD

A
Cheapest Retailer
-
HK$21,341 HKD
A
Retailer 2
-
HK$21,553 HKD
View
A
Retailer 3
-
HK$21,859 HKD
View
A
Retailer 4
-
HK$23,011 HKD
View
A
Retailer 5
-
HK$24,915 HKD
View
B+
Retailer 6
-
HK$25,707 HKD
View
B+
Retailer 7
-
HK$27,462 HKD
View
B+
Retailer 8
-
HK$28,144 HKD
View
B+
Retailer 9
-
HK$28,387 HKD
View
B
Retailer 10
-
HK$30,872 HKD
View
B
Retailer 11
-
HK$38,301 HKD
View
Most Expensive
B
Helzberg Diamonds
XZRIIKLGHLLJG · Nov 6
HK$40,582 HKD
$5,178 USD
View
11 more retailers have this diamond
Prices start from HK$21,341 HKDSave up to HK$19,241 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$21,341 HKD