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Marquise|Natural|GIA

1.51ct D SI1 Marquise Natural Diamond

ID • D/SI1 • GIA 1545041696

Certificate GIA 1545041696

Diamond specifications and retailer prices

From €12,055 EUR
$13,521 USD
As of November 1, 2026
Save €8,425 EUR (41%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €20,480 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545041696. Listed at 14 retailers as of November 1, 2026, with prices from €12,055 to €20,480, a €8,425 spread on the same certified stone. MOH London lists it at €20,480. 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
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle42.1°
OriginNatural
Grading LabGIA
CertificateGIA 1545041696
Dimensions12.16 × 5.93 × 3.78 mm
L/W Ratio2.05
Girdle conditionFaceted
Top View
12.16 mm5.93 mm1.51 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1545041696
Side View
Table 59.0%CrownGirdle: STK-THKPavilion 42.1°Culet: NoneDepth 63.7%

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: €20,480 EUR|Low: €10,928 EUR|High: €20,727 EUR|Avg: €15,356 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
November 2, 2026
Retailer 7€12,567 EUR
Retailer 8€12,861 EUR
Retailer 3€13,113 EUR
Retailer 6€13,777 EUR
Retailer 4€13,811 EUR
Retailer 9€13,987 EUR
Retailer 10€14,206 EUR
Retailer 2€15,906 EUR
Retailer 11€18,577 EUR
Retailer 5€19,265 EUR
MOH London€20,480 EUR

45 data points across 11 retailers

14 retailers€12,055 EUR to €20,480 EUR

B+
Cheapest Retailer
-
€12,055 EUR
$13,521 USD
B+
Retailer 2
-
€12,567 EUR
$14,095 USD
View
Final sale: no returns
B+
Retailer 3
-
€12,861 EUR
$14,425 USD
View
B+
Retailer 4
-
€13,113 EUR
$14,708 USD
View
B+
Retailer 5
-
€13,222 EUR
$14,830 USD
View
Retailer 6
-
€13,777 EUR
A$23,773 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
€13,811 EUR
£12,197 GBP
View
B
Retailer 8
-
€13,987 EUR
$15,688 USD
View
B
Retailer 9
-
€14,206 EUR
$15,934 USD
View
B
Retailer 10
-
€14,752 EUR
$16,546 USD
View
B
Retailer 11
-
€15,906 EUR
View
B
Retailer 12
-
€18,577 EUR
$20,836 USD
View
B
Retailer 13
-
€19,265 EUR
ZAR 349,082 ZAR
View
Most Expensive
B
MOH London
95D10177E · Nov 1
€20,480 EUR
£18,087 GBP
View
13 more retailers have this diamond
Prices start from €12,055 EURSave up to €8,425 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
€12,055 EUR