CaratHunter
Plans
Marquise|Natural|GIA

1.21ct F SI2 Marquise Natural Diamond

GD • F/SI2 • GIA 1555561523

Certificate GIA 1555561523

Diamond specifications and retailer prices

From HK$25,127 HKD
As of November 4, 2026
Save HK$22,650 HKD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$47,777 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1555561523. Listed at 12 retailers as of November 4, 2026, with prices from HK$25,127 to HK$47,777, a HK$22,650 spread on the same certified stone. Helzberg Diamonds lists it at HK$47,777. 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
F
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.64°
Pavilion angle40.64°
OriginNatural
Grading LabGIA
CertificateGIA 1555561523
Dimensions9.96 × 5.47 × 3.68 mm
L/W Ratio1.82
Culet sizeNone
Top View
9.96 mm5.47 mm1.21 ctF / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555561523
Side View
Table 59.0%Crown 43.64°Girdle: STK-VTKPavilion 40.64°Culet: NoneDepth 67.3%

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$47,777 HKD|Low: HK$25,127 HKD|High: HK$48,803 HKD|Avg: HK$33,533 HKD|-2.1%
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 7HK$25,127 HKD
Retailer 6HK$26,263 HKD
Retailer 3HK$27,400 HKD
Retailer 2HK$29,014 HKD
Retailer 4HK$30,237 HKD
Retailer 11HK$30,268 HKD
Retailer 9HK$32,055 HKD
Retailer 10HK$32,517 HKD
Retailer 5HK$33,419 HKD
Retailer 8HK$45,042 HKD
Helzberg DiamondsHK$47,777 HKD

41 data points across 11 retailers

12 retailersHK$25,127 HKD to HK$47,777 HKD

A
Cheapest Retailer
-
HK$25,127 HKD
A
Retailer 2
-
HK$26,263 HKD
View
B+
Retailer 3
-
HK$27,400 HKD
View
B+
Retailer 4
-
HK$29,014 HKD
View
B+
Retailer 5
-
HK$30,237 HKD
View
B+
Retailer 6
-
HK$30,268 HKD
View
B+
Retailer 7
-
HK$32,055 HKD
View
B+
Retailer 8
-
HK$32,517 HKD
View
B+
Retailer 9
-
HK$33,419 HKD
View
B
Retailer 10
-
HK$35,260 HKD
View
B
Retailer 11
-
HK$45,042 HKD
View
Most Expensive
B
Helzberg Diamonds
XZRHLLLLMHLIJ · Nov 6
HK$47,777 HKD
$6,096 USD
View
11 more retailers have this diamond
Prices start from HK$25,127 HKDSave up to HK$22,650 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$25,127 HKD