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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 €2,124 EUR
SGD 3,207 SGD
As of October 31, 2026
Save €1,842 EUR (46%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €3,966 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 €2,124 to €3,966, a €1,842 spread on the same certified stone. Helzberg Diamonds lists it at €3,966. 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: €3,966 EUR|Low: €2,267 EUR|High: €3,966 EUR|Avg: €2,814 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€2,267 EUR
Retailer 10€2,274 EUR
Retailer 9€2,291 EUR
Retailer 11€2,307 EUR
Retailer 5€2,471 EUR
Retailer 4€2,512 EUR
Retailer 6€2,706 EUR
Retailer 3€2,809 EUR
Retailer 2€2,972 EUR
Retailer 8€3,517 EUR
Retailer 7€3,736 EUR
Helzberg Diamonds€3,966 EUR

18 data points across 12 retailers

13 retailers€2,124 EUR to €3,966 EUR

B+
Cheapest Retailer
-
€2,124 EUR
SGD 3,207 SGD
B+
Retailer 2
-
€2,267 EUR
$2,533 USD
View
B+
Retailer 3
-
€2,274 EUR
$2,540 USD
View
B+
Retailer 4
-
€2,291 EUR
$2,559 USD
View
B+
Retailer 5
-
€2,307 EUR
$2,578 USD
View
B+
Retailer 6
-
€2,471 EUR
£2,174 GBP
View
B
Retailer 7
-
€2,512 EUR
SGD 3,792 SGD
View
B
Retailer 8
-
€2,706 EUR
$3,023 USD
View
B
Retailer 9
-
€2,809 EUR
$3,138 USD
View
B
Retailer 10
-
€2,972 EUR
View
B
Retailer 11
-
€3,517 EUR
$3,929 USD
View
B
Retailer 12
-
€3,736 EUR
$4,174 USD
View
Most Expensive
C
Helzberg Diamonds
XZRILMMMGPJKM · Nov 2
€3,966 EUR
$4,431 USD
View
12 more retailers have this diamond
Prices start from €2,124 EURSave up to €1,842 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
€2,124 EUR