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Marquise|Natural|GIA

1.51ct E SI2 Marquise Natural Diamond

ID • E/SI2 • GIA 6551704674

Certificate GIA 6551704674

Diamond specifications and retailer prices

From €6,123 EUR
£5,386 GBP
As of October 31, 2026
Save €5,665 EUR (48%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €11,787 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two 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 6551704674. Listed at 8 retailers as of October 30, 2026, with prices from €6,123 to €11,787, a €5,665 spread on the same certified stone. NZ Jewellers lists it at €11,787. 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
E
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551704674
Dimensions10.50 × 5.91 × 3.95 mm
L/W Ratio1.78
Top View
10.50 mm5.91 mm1.51 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551704674
Side View
Table 61.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 66.8%

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: Oct 31
Current: €11,787 EUR|Low: €6,085 EUR|High: €11,929 EUR|Avg: €7,245 EUR|-1.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 2€6,123 EUR
Retailer 7€6,174 EUR
Retailer 8€6,275 EUR
Retailer 3€6,661 EUR
Retailer 5€7,048 EUR
Retailer 4€7,156 EUR
Retailer 6€9,875 EUR
NZ Jewellers€11,787 EUR

37 data points across 8 retailers

8 retailers€6,123 EUR to €11,787 EUR

A
Cheapest Retailer
-
€6,123 EUR
£5,386 GBP
A
Retailer 2
-
€6,174 EUR
$6,898 USD
View
A
Retailer 3
-
€6,275 EUR
$7,010 USD
View
A
Retailer 4
-
€6,661 EUR
£5,860 GBP
View
A
Retailer 5
-
€7,048 EUR
$7,874 USD
View
A
Retailer 6
-
€7,156 EUR
$7,995 USD
View
B+
Retailer 7
-
€9,875 EUR
£8,687 GBP
View
Most Expensive
B
NZ Jewellers
35a4231b-b749-454d-af27-01c6914e6792 · Oct 30
€11,787 EUR
$13,169 USD
View
7 more retailers have this diamond
Prices start from €6,123 EURSave up to €5,665 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
€6,123 EUR