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Marquise|Natural|GIA

1.51ct E SI1 Marquise Natural Diamond

VG • E/SI1 • GIA 6552657128

Certificate GIA 6552657128

Diamond specifications and retailer prices

From $10,040 SGD
As of October 30, 2026
Save $7,953 SGD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $17,993 SGD at With Clarity · As of October 30, 2026
View at With Clarity

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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552657128. Listed at 13 retailers as of October 30, 2026, with prices from $10,040 to $17,993, a $7,953 spread on the same certified stone. With Clarity lists it at $17,993. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.86°
Pavilion angle39.05°
OriginNatural
Grading LabGIA
CertificateGIA 6552657128
Dimensions10.95 × 5.90 × 3.67 mm
L/W Ratio1.86
Culet sizeNone
Top View
10.95 mm5.90 mm1.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552657128
Side View
Table 62.0%Crown 39.86°Girdle: THN-THKPavilion 39.05°Culet: NoneDepth 62.2%

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: $11,401 SGD|Low: $10,040 SGD|High: $19,116 SGD|Avg: $12,714 SGD|-6.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
With Clarity
October 29, 2026
Retailer 5$10,040 SGD
Retailer 8$10,626 SGD
Retailer 7$10,866 SGD
Retailer 9$10,868 SGD
Retailer 10$11,048 SGD
Retailer 6$11,199 SGD
Retailer 1$11,401 SGD
Retailer 3$12,885 SGD
Retailer 11$13,008 SGD
Retailer 4$13,297 SGD
Retailer 2$13,304 SGD
With Clarity$17,993 SGD

39 data points across 12 retailers

13 retailers$10,040 SGD to $17,993 SGD

A
Cheapest Retailer
-
$10,040 SGD
A
Retailer 2
-
$10,626 SGD
$8,312 USD
View
A
Retailer 3
-
$10,866 SGD
$8,500 USD
View
A
Retailer 4
-
$10,868 SGD
View
A
Retailer 5
-
$11,048 SGD
$8,642 USD
View
A
Retailer 6
-
$11,199 SGD
$8,760 USD
View
A
Retailer 7
-
$11,401 SGD
£7,022 GBP
View
B+
Retailer 8
-
$12,885 SGD
$10,079 USD
View
B+
Retailer 9
-
$13,008 SGD
$10,175 USD
View
B+
Retailer 10
-
$13,297 SGD
€9,906 EUR
View
B+
Retailer 11
-
$13,304 SGD
$10,407 USD
View
B+
Retailer 12
-
$14,041 SGD
$10,983 USD
View
Most Expensive
B
With Clarity
6552657128 · Oct 30
$17,993 SGD
$14,075 USD
View
12 more retailers have this diamond
Prices start from $10,040 SGDSave up to $7,953 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
$10,040 SGD