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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 $17,285 SGD
$13,521 USD
As of November 1, 2026
Save $12,080 SGD (41%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $29,365 SGD 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 $17,285 to $29,365, a $12,080 spread on the same certified stone. MOH London lists it at $29,365. 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: $29,365 SGD|Low: $15,669 SGD|High: $29,719 SGD|Avg: $22,018 SGD|-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$18,019 SGD
Retailer 8$18,441 SGD
Retailer 3$18,803 SGD
Retailer 6$19,754 SGD
Retailer 4$19,803 SGD
Retailer 9$20,056 SGD
Retailer 10$20,370 SGD
Retailer 2$22,807 SGD
Retailer 11$26,637 SGD
Retailer 5$27,624 SGD
MOH London$29,365 SGD

45 data points across 11 retailers

14 retailers$17,285 SGD to $29,365 SGD

B+
Cheapest Retailer
-
$17,285 SGD
$13,521 USD
B+
Retailer 2
-
$18,019 SGD
$14,095 USD
View
Final sale: no returns
B+
Retailer 3
-
$18,441 SGD
$14,425 USD
View
B+
Retailer 4
-
$18,803 SGD
$14,708 USD
View
B+
Retailer 5
-
$18,959 SGD
$14,830 USD
View
Retailer 6
-
$19,754 SGD
A$23,773 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$19,803 SGD
£12,197 GBP
View
B
Retailer 8
-
$20,056 SGD
$15,688 USD
View
B
Retailer 9
-
$20,370 SGD
$15,934 USD
View
B
Retailer 10
-
$21,152 SGD
$16,546 USD
View
B
Retailer 11
-
$22,807 SGD
€16,991 EUR
View
B
Retailer 12
-
$26,637 SGD
$20,836 USD
View
B
Retailer 13
-
$27,624 SGD
ZAR 349,082 ZAR
View
Most Expensive
B
MOH London
95D10177E · Nov 1
$29,365 SGD
£18,087 GBP
View
13 more retailers have this diamond
Prices start from $17,285 SGDSave up to $12,080 SGD

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
$17,285 SGD