Marquise|Natural|GIA

1.51ct D SI1 Marquise Natural Diamond

ID • D/SI1 • GIA 1545041696

Certificate GIA 1545041696

Diamond specifications and retailer prices

From $13,521 USD
As of November 1, 2026
Save $9,449 USD (41%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $22,970 USD 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 $13,521 to $22,970, a $9,449 spread on the same certified stone. MOH London lists it at $22,970. 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
Color
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: $22,970 USD|Low: $12,257 USD|High: $23,247 USD|Avg: $17,223 USD|-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$14,095 USD
Retailer 8$14,425 USD
Retailer 3$14,708 USD
Retailer 6$15,452 USD
Retailer 4$15,490 USD
Retailer 9$15,688 USD
Retailer 10$15,934 USD
Retailer 2$17,841 USD
Retailer 11$20,836 USD
Retailer 5$21,608 USD
MOH London$22,970 USD

45 data points across 11 retailers

14 retailers$13,521 USD to $22,970 USD

B+
Cheapest Retailer
-
$13,521 USD
B+
Retailer 2
-
$14,095 USD
View
Final sale: no returns
B+
Retailer 3
-
$14,425 USD
View
B+
Retailer 4
-
$14,708 USD
View
B+
Retailer 5
-
$14,830 USD
View
Retailer 6
-
$15,452 USD
A$23,773 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$15,490 USD
£12,197 GBP
View
B
Retailer 8
-
$15,688 USD
View
B
Retailer 9
-
$15,934 USD
View
B
Retailer 10
-
$16,546 USD
View
B
Retailer 11
-
$17,841 USD
€16,991 EUR
View
B
Retailer 12
-
$20,836 USD
View
B
Retailer 13
-
$21,608 USD
ZAR 349,082 ZAR
View
Most Expensive
B
MOH London
95D10177E · Nov 1
$22,970 USD
£18,087 GBP
View
13 more retailers have this diamond
Prices start from $13,521 USDSave up to $9,449 USD

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
$13,521 USD