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Marquise|Natural|IGI

1.21ct E SI2 Marquise Natural Diamond

VG • E/SI2 • IGI 830653516

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 830653516

Diamond specifications and retailer prices

From HK$18,711 HKD
As of November 5, 2026
Save HK$16,036 HKD (46%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$34,746 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 E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 830653516. Listed at 8 retailers as of November 5, 2026, with prices from HK$18,711 to HK$34,746, a HK$16,036 spread on the same certified stone. Helzberg Diamonds lists it at HK$34,746. 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
E
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle38.7°
OriginNatural
Grading LabIGI
CertificateIGI 830653516
Dimensions10.57 × 5.59 × 3.35 mm
L/W Ratio1.89
Girdle conditionFaceted
Top View
10.57 mm5.59 mm1.21 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 830653516
Side View
Table 60.0%Crown 39°Girdle: MediumPavilion 38.7°Culet: NoneDepth 59.9%

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 5
Current: HK$34,746 HKD|Low: HK$18,687 HKD|High: HK$34,746 HKD|Avg: HK$26,665 HKD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 3HK$18,711 HKD
Retailer 5HK$19,872 HKD
Retailer 6HK$20,217 HKD
Retailer 7HK$24,610 HKD
Retailer 2HK$25,928 HKD
Retailer 4HK$33,224 HKD
Helzberg DiamondsHK$34,746 HKD

12 data points across 7 retailers

8 retailersHK$18,711 HKD to HK$34,746 HKD

A
Cheapest Retailer
-
HK$18,711 HKD
A
Retailer 2
-
HK$19,872 HKD
View
A
Retailer 3
-
HK$20,123 HKD
View
A
Retailer 4
-
HK$20,217 HKD
View
B+
Retailer 5
-
HK$24,610 HKD
View
A
Retailer 6
-
HK$25,928 HKD
View
B+
Retailer 7
-
HK$33,224 HKD
View
Most Expensive
B+
Helzberg Diamonds
ZXZOJGMLJLHM · Nov 6
HK$34,746 HKD
$4,429 USD
View
7 more retailers have this diamond
Prices start from HK$18,711 HKDSave up to HK$16,036 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$18,711 HKD