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Marquise|Natural|GIA

1.20ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 3555937032

Certificate GIA 3555937032

Diamond specifications and retailer prices

From €3,284 EUR
As of November 4, 2026
Save €2,601 EUR (44%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €5,885 EUR at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.2ct natural marquise diamond

This 1.2ct 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 3555937032. Listed at 11 retailers as of November 4, 2026, with prices from €3,284 to €5,885, a €2,601 spread on the same certified stone. Helzberg Diamonds lists it at €5,885. 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

1.20
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.76°
Pavilion angle40.92°
OriginNatural
Grading LabGIA
CertificateGIA 3555937032
Dimensions10.44 × 5.50 × 3.54 mm
L/W Ratio1.90
Culet sizeNone
Top View
10.44 mm5.50 mm1.20 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3555937032
Side View
Table 57.0%Crown 38.76°Girdle: THN-THKPavilion 40.92°Culet: NoneDepth 64.3%

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 4
Current: €5,885 EUR|Low: €3,284 EUR|High: €6,253 EUR|Avg: €4,229 EUR|-5.9%
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 7€3,284 EUR
Retailer 6€3,312 EUR
Retailer 5€3,364 EUR
Retailer 8€3,510 EUR
Retailer 11€3,585 EUR
Retailer 4€3,767 EUR
Retailer 9€4,160 EUR
Retailer 10€4,192 EUR
Retailer 2€4,222 EUR
Retailer 3€5,880 EUR
Helzberg Diamonds€5,885 EUR

42 data points across 11 retailers

11 retailers€3,284 EUR to €5,885 EUR

A
Cheapest Retailer
-
€3,284 EUR
A
Retailer 2
-
€3,312 EUR
View
A
Retailer 3
-
€3,364 EUR
View
A
Retailer 4
-
€3,510 EUR
View
A
Retailer 5
-
€3,585 EUR
View
A
Retailer 6
-
€3,767 EUR
View
B+
Retailer 7
-
€4,160 EUR
View
B+
Retailer 8
-
€4,192 EUR
View
B+
Retailer 9
-
€4,222 EUR
View
B
Retailer 10
-
€5,880 EUR
View
Most Expensive
B
Helzberg Diamonds
XZRJLLLPJNGJI · Nov 6
€5,885 EUR
$6,571 USD
View
10 more retailers have this diamond
Prices start from €3,284 EURSave up to €2,601 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
1.20ct Marquise
€3,284 EUR