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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 £10,091 GBP
$13,521 USD
As of November 1, 2026
Save £7,052 GBP (41%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £17,144 GBP 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 £10,091 to £17,144, a £7,052 spread on the same certified stone. MOH London lists it at £17,144. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £17,144 GBP|Low: £9,148 GBP|High: £17,350 GBP|Avg: £12,854 GBP|-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£10,520 GBP
Retailer 8£10,766 GBP
Retailer 3£10,977 GBP
Retailer 6£11,532 GBP
Retailer 4£11,561 GBP
Retailer 9£11,708 GBP
Retailer 10£11,892 GBP
Retailer 2£13,315 GBP
Retailer 11£15,551 GBP
Retailer 5£16,127 GBP
MOH London£17,144 GBP

45 data points across 11 retailers

14 retailers£10,091 GBP to £17,144 GBP

B+
Cheapest Retailer
-
£10,091 GBP
$13,521 USD
B+
Retailer 2
-
£10,520 GBP
$14,095 USD
View
Final sale: no returns
B+
Retailer 3
-
£10,766 GBP
$14,425 USD
View
B+
Retailer 4
-
£10,977 GBP
$14,708 USD
View
B+
Retailer 5
-
£11,068 GBP
$14,830 USD
View
Retailer 6
-
£11,532 GBP
A$23,773 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
£11,561 GBP
View
B
Retailer 8
-
£11,708 GBP
$15,688 USD
View
B
Retailer 9
-
£11,892 GBP
$15,934 USD
View
B
Retailer 10
-
£12,349 GBP
$16,546 USD
View
B
Retailer 11
-
£13,315 GBP
€16,991 EUR
View
B
Retailer 12
-
£15,551 GBP
$20,836 USD
View
B
Retailer 13
-
£16,127 GBP
ZAR 349,082 ZAR
View
Most Expensive
B
MOH London
95D10177E · Nov 1
£17,144 GBP
View
13 more retailers have this diamond
Prices start from £10,091 GBPSave up to £7,052 GBP

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
£10,091 GBP