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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 €2,116 EUR
SGD 3,207 SGD
As of October 31, 2026
Save €1,835 EUR (46%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €3,951 EUR 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 €2,116 to €3,951, a €1,835 spread on the same certified stone. Helzberg Diamonds lists it at €3,951. 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: €3,951 EUR|Low: €2,258 EUR|High: €3,951 EUR|Avg: €2,803 EUR
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€2,258 EUR
Retailer 10€2,265 EUR
Retailer 9€2,282 EUR
Retailer 11€2,298 EUR
Retailer 5€2,461 EUR
Retailer 4€2,502 EUR
Retailer 6€2,695 EUR
Retailer 3€2,798 EUR
Retailer 2€2,960 EUR
Retailer 8€3,503 EUR
Retailer 7€3,721 EUR
Helzberg Diamonds€3,951 EUR

18 data points across 12 retailers

13 retailers€2,116 EUR to €3,951 EUR

B+
Cheapest Retailer
-
€2,116 EUR
SGD 3,207 SGD
B+
Retailer 2
-
€2,258 EUR
$2,533 USD
View
B+
Retailer 3
-
€2,265 EUR
$2,540 USD
View
B+
Retailer 4
-
€2,282 EUR
$2,559 USD
View
B+
Retailer 5
-
€2,298 EUR
$2,578 USD
View
B+
Retailer 6
-
€2,461 EUR
£2,174 GBP
View
B
Retailer 7
-
€2,502 EUR
SGD 3,792 SGD
View
B
Retailer 8
-
€2,695 EUR
$3,023 USD
View
B
Retailer 9
-
€2,798 EUR
$3,138 USD
View
B
Retailer 10
-
€2,960 EUR
View
B
Retailer 11
-
€3,503 EUR
$3,929 USD
View
B
Retailer 12
-
€3,721 EUR
$4,174 USD
View
Most Expensive
C
Helzberg Diamonds
XZRILMMMGPJKM · Nov 2
€3,951 EUR
$4,431 USD
View
12 more retailers have this diamond
Prices start from €2,116 EURSave up to €1,835 EUR

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
€2,116 EUR