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Marquise|Natural|GIA

1.51ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 6555666190

Certificate GIA 6555666190

Diamond specifications and retailer prices

From €7,315 EUR
$8,205 USD
As of November 1, 2026
Save €2,759 EUR (27%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €10,075 EUR at Jared · As of November 2, 2026
View at Jared

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555666190. Listed at 9 retailers as of November 1, 2026, with prices from €7,315 to €10,075, a €2,759 spread on the same certified stone. Jared lists it at €10,075. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555666190
Dimensions11.41 × 5.94 × 3.77 mm
L/W Ratio1.92
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Cavity, Needle
Top View
11.41 mm5.94 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555666190
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.4%

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 1
Current: €10,075 EUR|Low: €7,614 EUR|High: €10,547 EUR|Avg: €9,184 EUR|-4.5%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 4€8,089 EUR
Retailer 5€8,203 EUR
Retailer 2€8,641 EUR
Retailer 6€8,691 EUR
Retailer 8€9,216 EUR
Retailer 3€9,745 EUR
Retailer 7€9,745 EUR
Jared€10,075 EUR

16 data points across 8 retailers

9 retailers€7,315 EUR to €10,075 EUR

A
Cheapest Retailer
-
€7,315 EUR
$8,205 USD
B+
Retailer 2
-
€8,089 EUR
SGD 12,260 SGD
View
B+
Retailer 3
-
€8,203 EUR
$9,201 USD
View
Final sale: no returns
B+
Retailer 4
-
€8,641 EUR
£7,631 GBP
View
B+
Retailer 5
-
€8,691 EUR
$9,748 USD
View
B+
Retailer 6
-
€9,216 EUR
$10,337 USD
View
B
Retailer 7
-
€9,745 EUR
$10,930 USD
View
B
Retailer 8
-
€9,745 EUR
$10,930 USD
View
Most Expensive
B
Jared
159480438 · Nov 2
€10,075 EUR
$11,300 USD
View
8 more retailers have this diamond
Prices start from €7,315 EURSave up to €2,759 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
€7,315 EUR