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Marquise|Natural|GIA

1.00ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 3555958830

Certificate GIA 3555958830

Diamond specifications and retailer prices

From €1,830 EUR
As of November 3, 2026
Save €1,647 EUR (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €3,477 EUR at Helzberg Diamonds · As of November 3, 2026
View at Helzberg Diamonds

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded E 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 3555958830. Listed at 13 retailers as of November 3, 2026, with prices from €1,830 to €3,477, a €1,647 spread on the same certified stone. Helzberg Diamonds lists it at €3,477. 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

1.00
Carat
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40°
Pavilion angle40.33°
OriginNatural
Grading LabGIA
CertificateGIA 3555958830
Dimensions9.82 × 5.18 × 3.32 mm
L/W Ratio1.90
Culet sizeNone
Top View
9.82 mm5.18 mm1.00 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3555958830
Side View
Table 59.0%Crown 40°Girdle: STK-THKPavilion 40.33°Culet: NoneDepth 64.0%

Caratlytics Score

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

Price History

Last verified: Nov 3
Current: €3,477 EUR|Low: €1,823 EUR|High: €3,698 EUR|Avg: €2,400 EUR|-6.0%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 3, 2026
Retailer 7€1,830 EUR
Retailer 3€1,963 EUR
Retailer 4€1,980 EUR
Retailer 12€1,999 EUR
Retailer 13€2,031 EUR
Retailer 10€2,113 EUR
Retailer 11€2,141 EUR
Retailer 8€2,297 EUR
Retailer 5€2,344 EUR
Retailer 9€2,426 EUR
Retailer 2€2,494 EUR
Retailer 6€3,188 EUR
Helzberg Diamonds€3,477 EUR

41 data points across 13 retailers

13 retailers€1,830 EUR to €3,477 EUR

A
Cheapest Retailer
-
€1,830 EUR
A
Retailer 2
-
€1,963 EUR
View
A
Retailer 3
-
€1,980 EUR
View
A
Retailer 4
-
€1,999 EUR
View
A
Retailer 5
-
€2,031 EUR
View
A
Retailer 6
-
€2,113 EUR
View
A
Retailer 7
-
€2,141 EUR
View
A
Retailer 8
-
€2,297 EUR
View
A
Retailer 9
-
€2,344 EUR
View
A
Retailer 10
-
€2,426 EUR
View
A
Retailer 11
-
€2,494 EUR
View
B+
Retailer 12
-
€3,188 EUR
View
Most Expensive
B+
Helzberg Diamonds
XZRJLLLPLOOJG · Nov 3
€3,477 EUR
$3,887 USD
View
12 more retailers have this diamond
Prices start from €1,830 EURSave up to €1,647 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
1.00ct Marquise
€1,830 EUR