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Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 2245057622

Certificate GIA 2245057622

Diamond specifications and retailer prices

From €6,468 EUR
As of November 3, 2026
Save €3,969 EUR (38%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €10,437 EUR at Helzberg Diamonds · As of November 3, 2026
View at Helzberg Diamonds

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two 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 2245057622. Listed at 12 retailers as of November 3, 2026, with prices from €6,468 to €10,437, a €3,969 spread on the same certified stone. Helzberg Diamonds lists it at €10,437. 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

1.51
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.37°
Pavilion angle41.86°
OriginNatural
Grading LabGIA
CertificateGIA 2245057622
Dimensions11.44 × 6.05 × 3.87 mm
L/W Ratio1.89
Culet sizeNone
Top View
11.44 mm6.05 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2245057622
Side View
Table 58.0%Crown 36.37°Girdle: STK-THKPavilion 41.86°Culet: NoneDepth 64.1%

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 3
Current: €10,437 EUR|Low: €6,468 EUR|High: €11,241 EUR|Avg: €8,122 EUR|-7.2%
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 6, 2026
Retailer 9€6,468 EUR
Retailer 11€6,614 EUR
Retailer 12€6,865 EUR
Retailer 5€6,908 EUR
Retailer 3€6,984 EUR
Retailer 4€7,080 EUR
Retailer 10€7,090 EUR
Retailer 8€8,030 EUR
Retailer 7€8,244 EUR
Retailer 6€9,005 EUR
Retailer 2€9,534 EUR
Helzberg Diamonds€10,437 EUR

39 data points across 12 retailers

12 retailers€6,468 EUR to €10,437 EUR

A
Cheapest Retailer
-
€6,468 EUR
A
Retailer 2
-
€6,614 EUR
View
A
Retailer 3
-
€6,865 EUR
View
A
Retailer 4
-
€6,908 EUR
View
A
Retailer 5
-
€6,984 EUR
View
A
Retailer 6
-
€7,080 EUR
View
A
Retailer 7
-
€7,090 EUR
View
A
Retailer 8
-
€8,030 EUR
View
A
Retailer 9
-
€8,244 EUR
View
B+
Retailer 10
-
€9,005 EUR
View
B+
Retailer 11
-
€9,534 EUR
View
Most Expensive
B+
Helzberg Diamonds
XZRIIKLGLNMII · Nov 3
€10,437 EUR
$11,653 USD
View
11 more retailers have this diamond
Prices start from €6,468 EURSave up to €3,969 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
1.51ct Marquise
€6,468 EUR