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Marquise|Natural|GIA

0.90ct D SI1 Marquise Natural Diamond

GD • D/SI1 • GIA 2566609346

Certificate GIA 2566609346

Diamond specifications and retailer prices

From HK$18,619 HKD
SGD 3,207 SGD
As of October 31, 2026
Save HK$16,145 HKD (46%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$34,764 HKD at Helzberg Diamonds · As of November 2, 2026
View at Helzberg Diamonds

About this 0.9ct natural marquise diamond

This 0.9ct natural marquise sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2566609346. Listed at 13 retailers as of October 31, 2026, with prices from HK$18,619 to HK$34,764, a HK$16,145 spread on the same certified stone. Helzberg Diamonds lists it at HK$34,764. 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

0.90
Carat
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle39.22°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 2566609346
Dimensions9.00 × 4.94 × 3.26 mm
L/W Ratio1.82
Culet sizeNone
Top View
9.00 mm4.94 mm0.90 ctD / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566609346
Side View
Table 59.0%Crown 39.22°Girdle: STK-VTKPavilion 40.2°Culet: NoneDepth 66.1%

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: Oct 31
Current: HK$34,764 HKD|Low: HK$19,873 HKD|High: HK$34,764 HKD|Avg: HK$24,669 HKD
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 2, 2026
Retailer 12HK$19,873 HKD
Retailer 10HK$19,928 HKD
Retailer 9HK$20,077 HKD
Retailer 11HK$20,224 HKD
Retailer 5HK$21,657 HKD
Retailer 4HK$22,016 HKD
Retailer 6HK$23,718 HKD
Retailer 3HK$24,620 HKD
Retailer 2HK$26,049 HKD
Retailer 8HK$30,826 HKD
Retailer 7HK$32,747 HKD
Helzberg DiamondsHK$34,764 HKD

18 data points across 12 retailers

13 retailersHK$18,619 HKD to HK$34,764 HKD

B+
Cheapest Retailer
-
HK$18,619 HKD
SGD 3,207 SGD
B+
Retailer 2
-
HK$19,873 HKD
$2,533 USD
View
B+
Retailer 3
-
HK$19,928 HKD
$2,540 USD
View
B+
Retailer 4
-
HK$20,077 HKD
$2,559 USD
View
B+
Retailer 5
-
HK$20,224 HKD
$2,578 USD
View
B+
Retailer 6
-
HK$21,657 HKD
£2,174 GBP
View
B
Retailer 7
-
HK$22,016 HKD
SGD 3,792 SGD
View
B
Retailer 8
-
HK$23,718 HKD
$3,023 USD
View
B
Retailer 9
-
HK$24,620 HKD
$3,138 USD
View
B
Retailer 10
-
HK$26,049 HKD
€3,162 EUR
View
B
Retailer 11
-
HK$30,826 HKD
$3,929 USD
View
B
Retailer 12
-
HK$32,747 HKD
$4,174 USD
View
Most Expensive
C
Helzberg Diamonds
XZRILMMMGPJKM · Nov 2
HK$34,764 HKD
$4,431 USD
View
12 more retailers have this diamond
Prices start from HK$18,619 HKDSave up to HK$16,145 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+
0.90ct Marquise
HK$18,619 HKD