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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 $3,315 CAD
SGD 3,207 SGD
As of October 31, 2026
Save $2,875 CAD (46%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,190 CAD at Helzberg Diamonds · As of October 31, 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 $3,315 to $6,190, a $2,875 spread on the same certified stone. Helzberg Diamonds lists it at $6,190. 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
Color
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: $6,190 CAD|Low: $3,538 CAD|High: $6,190 CAD|Avg: $4,392 CAD
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 12$3,538 CAD
Retailer 10$3,548 CAD
Retailer 9$3,575 CAD
Retailer 11$3,601 CAD
Retailer 2$3,856 CAD
Retailer 4$3,920 CAD
Retailer 6$4,223 CAD
Retailer 3$4,383 CAD
Retailer 5$4,623 CAD
Retailer 8$5,488 CAD
Retailer 7$5,830 CAD
Helzberg Diamonds$6,190 CAD

18 data points across 12 retailers

13 retailers$3,315 CAD to $6,190 CAD

B+
Cheapest Retailer
-
$3,315 CAD
SGD 3,207 SGD
B+
Retailer 2
-
$3,538 CAD
$2,533 USD
View
B+
Retailer 3
-
$3,548 CAD
$2,540 USD
View
B+
Retailer 4
-
$3,575 CAD
$2,559 USD
View
B+
Retailer 5
-
$3,601 CAD
$2,578 USD
View
B+
Retailer 6
-
$3,856 CAD
£2,174 GBP
View
B
Retailer 7
-
$3,920 CAD
SGD 3,792 SGD
View
B
Retailer 8
-
$4,223 CAD
$3,023 USD
View
B
Retailer 9
-
$4,383 CAD
$3,138 USD
View
B
Retailer 10
-
$4,623 CAD
€3,152 EUR
View
B
Retailer 11
-
$5,488 CAD
$3,929 USD
View
B
Retailer 12
-
$5,830 CAD
$4,174 USD
View
Most Expensive
C
Helzberg Diamonds
XZRILMMMGPJKM · Oct 31
$6,190 CAD
$4,431 USD
View
12 more retailers have this diamond
Prices start from $3,315 CADSave up to $2,875 CAD

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
$3,315 CAD