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Marquise|Natural|GIA

1.51ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 2547653720

Certificate GIA 2547653720

Diamond specifications and retailer prices

From €6,454 EUR
$7,210 USD
As of November 1, 2026
Save €5,314 EUR (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €11,768 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded I 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 2547653720. Listed at 12 retailers as of November 1, 2026, with prices from €6,454 to €11,768, a €5,314 spread on the same certified stone. MOH London lists it at €11,768. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2547653720
Dimensions10.55 × 5.97 × 3.75 mm
L/W Ratio1.77
Top View
10.55 mm5.97 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2547653720
Side View
Table 57.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €11,768 EUR|Low: €6,454 EUR|High: €11,909 EUR|Avg: €8,669 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 6€6,454 EUR
Retailer 8€6,679 EUR
Retailer 9€7,582 EUR
Retailer 5€7,815 EUR
Retailer 7€7,961 EUR
Retailer 11€8,074 EUR
Retailer 12€8,074 EUR
Retailer 3€8,342 EUR
Retailer 2€9,225 EUR
Retailer 10€9,297 EUR
Retailer 4€10,610 EUR
MOH London€11,768 EUR

32 data points across 12 retailers

12 retailers€6,454 EUR to €11,768 EUR

B+
Cheapest Retailer
-
€6,454 EUR
$7,210 USD
B+
Retailer 2
-
€6,679 EUR
$7,462 USD
View
B
Retailer 3
-
€7,582 EUR
$8,471 USD
View
B+
Retailer 4
-
€7,815 EUR
£6,875 GBP
View
Retailer 5
-
€7,961 EUR
A$13,683 AUD
View
Price last confirmed 9 days ago
B
Retailer 6
-
€8,074 EUR
$9,020 USD
View
B
Retailer 7
-
€8,074 EUR
$9,020 USD
View
B
Retailer 8
-
€8,342 EUR
$9,320 USD
View
B
Retailer 9
-
€8,446 EUR
$9,436 USD
View
B
Retailer 10
-
€9,225 EUR
View
Retailer 11
-
€9,297 EUR
$10,387 USD
View
Price last confirmed 18 days ago
Most Expensive
B
MOH London
05593552D · Nov 1
€11,768 EUR
£10,352 GBP
View
11 more retailers have this diamond
Prices start from €6,454 EURSave up to €5,314 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.

B+
1.51ct Marquise
€6,454 EUR