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Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 5553877458

Certificate GIA 5553877458

Diamond specifications and retailer prices

From $10,440 SGD
As of November 6, 2026
Save $8,875 SGD (46%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $19,315 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553877458. Listed at 14 retailers as of November 5, 2026, with prices from $10,440 to $19,315, a $8,875 spread on the same certified stone. NZ Jewellers lists it at $19,315. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5553877458
Dimensions13.58 × 5.56 × 3.16 mm
L/W Ratio2.44
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Twinning Wisp, Needle
Top View
13.58 mm5.56 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5553877458
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NDepth 56.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $10,440 SGD|Low: $10,440 SGD|High: $18,317 SGD|Avg: $13,604 SGD|-2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1$10,440 SGD
Retailer 5$11,140 SGD
Retailer 3$12,553 SGD
Retailer 2$13,840 SGD
Retailer 6$14,071 SGD
Retailer 4$18,050 SGD

43 data points across 6 retailers

14 retailers$10,440 SGD to $19,315 SGD

A
Cheapest Retailer
-
$10,440 SGD
A
Retailer 2
-
$11,140 SGD
View
Final sale: no returns
A
Retailer 3
-
$11,727 SGD
View
A
Retailer 4
-
$11,869 SGD
View
A
Retailer 5
-
$12,553 SGD
View
Retailer 6
-
$12,792 SGD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$13,840 SGD
View
B+
Retailer 8
-
$13,858 SGD
View
B+
Retailer 9
-
$14,071 SGD
View
B+
Retailer 10
-
$14,178 SGD
View
B
Retailer 11
-
$15,991 SGD
View
Retailer 12
-
$16,577 SGD
View
Price last confirmed 61 days ago
B
Retailer 13
-
$18,050 SGD
View
Most Expensive
B
NZ Jewellers
4acfa7d8-9450-421e-80a5-34c289f89a5a · Nov 5
$19,315 SGD
$15,071 USD
View
13 more retailers have this diamond
Prices start from $10,440 SGDSave up to $8,875 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.

A
1.51ct Marquise
$10,440 SGD