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Marquise|Natural|GIA

1.21ct H SI2 Marquise Natural Diamond

VG • H/SI2 • GIA 6551370295

Certificate GIA 6551370295

Diamond specifications and retailer prices

From HK$25,276 HKD
As of November 4, 2026
Save HK$20,032 HKD (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$45,308 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551370295. Listed at 12 retailers as of November 4, 2026, with prices from HK$25,276 to HK$45,308, a HK$20,032 spread on the same certified stone. Helzberg Diamonds lists it at HK$45,308. 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
H
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle40.97°
Pavilion angle39.32°
OriginNatural
Grading LabGIA
CertificateGIA 6551370295
Dimensions10.12 × 5.47 × 3.54 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.12 mm5.47 mm1.21 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551370295
Side View
Table 60.0%Crown 40.97°Girdle: MED-VTKPavilion 39.32°Culet: NoneDepth 64.8%

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 4
Current: HK$45,308 HKD|Low: HK$25,276 HKD|High: HK$47,173 HKD|Avg: HK$32,536 HKD|-2.0%
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 7, 2026
Retailer 10HK$25,276 HKD
Retailer 9HK$25,746 HKD
Retailer 12HK$27,016 HKD
Retailer 8HK$27,313 HKD
Retailer 4HK$27,588 HKD
Retailer 2HK$29,186 HKD
Retailer 11HK$32,235 HKD
Retailer 3HK$32,690 HKD
Retailer 6HK$33,615 HKD
Retailer 5HK$35,065 HKD
Retailer 7HK$45,128 HKD
Helzberg DiamondsHK$45,308 HKD

41 data points across 12 retailers

12 retailersHK$25,276 HKD to HK$45,308 HKD

B+
Cheapest Retailer
-
HK$25,276 HKD
B+
Retailer 2
-
HK$27,016 HKD
View
B+
Retailer 3
-
HK$27,313 HKD
View
B+
Retailer 4
-
HK$27,588 HKD
View
B+
Retailer 5
-
HK$29,186 HKD
View
B
Retailer 6
-
HK$32,235 HKD
View
B
Retailer 7
-
HK$32,690 HKD
View
B
Retailer 8
-
HK$33,560 HKD
View
B
Retailer 9
-
HK$33,615 HKD
View
B
Retailer 10
-
HK$35,065 HKD
View
B
Retailer 11
-
HK$45,128 HKD
View
Most Expensive
B
Helzberg Diamonds
XZRMLLHJNGIPL · Nov 6
HK$45,308 HKD
$5,781 USD
View
11 more retailers have this diamond
Prices start from HK$25,276 HKDSave up to HK$20,032 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$25,276 HKD