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Marquise|Natural|GIA

1.51ct E SI2 Marquise Natural Diamond

ID • E/SI2 • GIA 6551704674

Certificate GIA 6551704674

Diamond specifications and retailer prices

From $8,744 SGD
£5,386 GBP
As of October 30, 2026
Save $8,091 SGD (48%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $16,835 SGD at NZ Jewellers · As of October 30, 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 E 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 6551704674. Listed at 8 retailers as of October 30, 2026, with prices from $8,744 to $16,835, a $8,091 spread on the same certified stone. NZ Jewellers lists it at $16,835. 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
E
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551704674
Dimensions10.50 × 5.91 × 3.95 mm
L/W Ratio1.78
Top View
10.50 mm5.91 mm1.51 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551704674
Side View
Table 61.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 66.8%

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: Oct 30
Current: $16,835 SGD|Low: $8,691 SGD|High: $17,037 SGD|Avg: $10,312 SGD|-1.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 3$8,744 SGD
Retailer 7$8,818 SGD
Retailer 8$8,962 SGD
Retailer 2$9,513 SGD
Retailer 5$10,066 SGD
Retailer 4$10,221 SGD
Retailer 6$14,104 SGD
NZ Jewellers$16,835 SGD

36 data points across 8 retailers

8 retailers$8,744 SGD to $16,835 SGD

A
Cheapest Retailer
-
$8,744 SGD
£5,386 GBP
A
Retailer 2
-
$8,818 SGD
$6,898 USD
View
A
Retailer 3
-
$8,962 SGD
$7,010 USD
View
A
Retailer 4
-
$9,513 SGD
£5,860 GBP
View
A
Retailer 5
-
$10,066 SGD
$7,874 USD
View
A
Retailer 6
-
$10,221 SGD
$7,995 USD
View
B+
Retailer 7
-
$14,104 SGD
£8,687 GBP
View
Most Expensive
B+
NZ Jewellers
35a4231b-b749-454d-af27-01c6914e6792 · Oct 30
$16,835 SGD
$13,169 USD
View
7 more retailers have this diamond
Prices start from $8,744 SGDSave up to $8,091 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
$8,744 SGD