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Marquise|Natural|GIA

1.01ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 1553986435

Certificate GIA 1553986435

Diamond specifications and retailer prices

From €2,202 EUR
As of November 5, 2026
Save €1,804 EUR (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €4,006 EUR at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.01ct natural marquise diamond

This 1.01ct natural marquise sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553986435. Listed at 11 retailers as of November 5, 2026, with prices from €2,202 to €4,006, a €1,804 spread on the same certified stone. Helzberg Diamonds lists it at €4,006. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.01
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.53°
Pavilion angle40.82°
OriginNatural
Grading LabGIA
CertificateGIA 1553986435
Dimensions9.99 × 5.27 × 3.33 mm
L/W Ratio1.90
Culet sizeNone
Top View
9.99 mm5.27 mm1.01 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553986435
Side View
Table 59.0%Crown 37.53°Girdle: STK-THKPavilion 40.82°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: €4,006 EUR|Low: €2,190 EUR|High: €4,151 EUR|Avg: €2,802 EUR|-3.5%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 6€2,202 EUR
Retailer 3€2,247 EUR
Retailer 2€2,292 EUR
Retailer 7€2,331 EUR
Retailer 5€2,477 EUR
Retailer 11€2,537 EUR
Retailer 9€2,733 EUR
Retailer 10€2,834 EUR
Retailer 4€2,991 EUR
Retailer 8€3,809 EUR
Helzberg Diamonds€4,006 EUR

44 data points across 11 retailers

11 retailers€2,202 EUR to €4,006 EUR

A
Cheapest Retailer
-
€2,202 EUR
A
Retailer 2
-
€2,247 EUR
View
A
Retailer 3
-
€2,292 EUR
View
A
Retailer 4
-
€2,331 EUR
View
A
Retailer 5
-
€2,477 EUR
View
A
Retailer 6
-
€2,537 EUR
View
A
Retailer 7
-
€2,733 EUR
View
A
Retailer 8
-
€2,834 EUR
View
A
Retailer 9
-
€2,991 EUR
View
B+
Retailer 10
-
€3,809 EUR
View
Most Expensive
B
Helzberg Diamonds
XZRHLLJPOMKJL · Nov 6
€4,006 EUR
$4,473 USD
View
10 more retailers have this diamond
Prices start from €2,202 EURSave up to €1,804 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.

A
1.01ct Marquise
€2,202 EUR