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Marquise|Natural|GIA

1.51ct K SI2 Marquise Natural Diamond

EX • K/SI2 • GIA 7558309385

Certificate GIA 7558309385

Diamond specifications and retailer prices

From $3,294 SGD
As of November 5, 2026
Save $3,344 SGD (50%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,638 SGD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

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 7558309385. Listed at 10 retailers as of November 5, 2026, with prices from $3,294 to $6,638, a $3,344 spread on the same certified stone. Wholesale Diamonds Direct lists it at $6,638. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.92°
Pavilion angle38.88°
OriginNatural
Grading LabGIA
CertificateGIA 7558309385
Dimensions11.13 × 5.88 × 3.73 mm
L/W Ratio1.89
Culet sizeNone
Top View
11.13 mm5.88 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7558309385
Side View
Table 59.0%Crown 39.92°Girdle: MED-THKPavilion 38.88°Culet: NoneDepth 63.5%

Caratlytics Score

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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 5
Current: $3,931 SGD|Low: $3,209 SGD|High: $7,561 SGD|Avg: $4,781 SGD|-12.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
November 6, 2026
Retailer 3$3,209 SGD
Retailer 6$3,294 SGD
Retailer 7$3,645 SGD
Retailer 1$3,931 SGD
Retailer 4$4,104 SGD
Retailer 10$4,392 SGD
Retailer 8$4,679 SGD
Retailer 9$4,782 SGD
Retailer 5$4,848 SGD
Retailer 2$4,971 SGD
Retailer 11$6,253 SGD
Wholesale Diamonds Direct$6,638 SGD

33 data points across 12 retailers

10 retailers$3,294 SGD to $6,638 SGD

A
Cheapest Retailer
-
$3,294 SGD
A
Retailer 2
-
$3,645 SGD
View
A
Retailer 3
-
$3,931 SGD
View
A
Retailer 4
-
$4,104 SGD
View
A
Retailer 5
-
$4,392 SGD
View
A
Retailer 6
-
$4,679 SGD
View
A
Retailer 7
-
$4,782 SGD
View
A
Retailer 8
-
$4,848 SGD
View
B+
Retailer 9
-
$4,971 SGD
View
Most Expensive
B+
Wholesale Diamonds Direct
262936460 · Nov 6
$6,638 SGD
$5,180 USD
View
9 more retailers have this diamond
Prices start from $3,294 SGDSave up to $3,344 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
$3,294 SGD