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Marquise|Natural|GIA

1.51ct K SI2 Marquise Natural Diamond

ID • K/SI2 • GIA 1553383300

Certificate GIA 1553383300

Diamond specifications and retailer prices

From $5,785 SGD
As of November 5, 2026
Save $7,182 SGD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $12,967 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553383300. Listed at 11 retailers as of November 5, 2026, with prices from $5,785 to $12,967, a $7,182 spread on the same certified stone. NZ Jewellers lists it at $12,967. 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
K
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1553383300
Dimensions11.04 × 5.99 × 3.80 mm
L/W Ratio1.84
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Knot, Crystal, Cavity, Needle, Indented Natural
Top View
11.04 mm5.99 mm1.51 ctK / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1553383300
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NDepth 63.4%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $12,967 SGD|Low: $5,785 SGD|High: $14,400 SGD|Avg: $8,853 SGD|-10.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 7$5,785 SGD
Retailer 11$6,449 SGD
Retailer 10$6,701 SGD
Retailer 6$7,218 SGD
Retailer 8$7,424 SGD
Retailer 4$7,436 SGD
Retailer 3$7,476 SGD
Retailer 2$8,421 SGD
Retailer 9$11,341 SGD
Retailer 5$11,391 SGD
NZ Jewellers$12,967 SGD

42 data points across 11 retailers

11 retailers$5,785 SGD to $12,967 SGD

A
Cheapest Retailer
-
$5,785 SGD
B+
Retailer 2
-
$6,449 SGD
View
B+
Retailer 3
-
$6,701 SGD
View
B+
Retailer 4
-
$7,218 SGD
View
B+
Retailer 5
-
$7,424 SGD
View
B+
Retailer 6
-
$7,436 SGD
View
B+
Retailer 7
-
$7,476 SGD
View
B
Retailer 8
-
$8,421 SGD
View
B
Retailer 9
-
$11,341 SGD
View
B
Retailer 10
-
$11,391 SGD
View
Most Expensive
B
NZ Jewellers
0cf6a239-952c-461e-9423-3f241acea6c2 · Nov 5
$12,967 SGD
$10,118 USD
View
10 more retailers have this diamond
Prices start from $5,785 SGDSave up to $7,182 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
$5,785 SGD