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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 $10,992 CAD
SGD 10,613 SGD
As of October 30, 2026
Save $8,707 CAD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $19,699 CAD at With Clarity · As of October 29, 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 29, 2026, with prices from $10,992 to $19,699, a $8,707 spread on the same certified stone. With Clarity lists it at $19,699. 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
Color
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: $12,482 CAD|Low: $10,992 CAD|High: $20,928 CAD|Avg: $13,919 CAD|-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$10,992 CAD
Retailer 8$11,633 CAD
Retailer 7$11,897 CAD
Retailer 9$11,898 CAD
Retailer 10$12,095 CAD
Retailer 6$12,260 CAD
Retailer 1$12,482 CAD
Retailer 3$14,106 CAD
Retailer 11$14,241 CAD
Retailer 4$14,558 CAD
Retailer 2$14,566 CAD
With Clarity$19,699 CAD

39 data points across 12 retailers

13 retailers$10,992 CAD to $19,699 CAD

A
Cheapest Retailer
-
$10,992 CAD
SGD 10,613 SGD
A
Retailer 2
-
$11,633 CAD
$8,312 USD
View
A
Retailer 3
-
$11,897 CAD
$8,500 USD
View
A
Retailer 4
-
$11,898 CAD
SGD 11,488 SGD
View
A
Retailer 5
-
$12,095 CAD
$8,642 USD
View
A
Retailer 6
-
$12,260 CAD
$8,760 USD
View
A
Retailer 7
-
$12,482 CAD
£7,022 GBP
View
B+
Retailer 8
-
$14,106 CAD
$10,079 USD
View
B+
Retailer 9
-
$14,241 CAD
$10,175 USD
View
B+
Retailer 10
-
$14,558 CAD
€9,906 EUR
View
B+
Retailer 11
-
$14,566 CAD
$10,407 USD
View
B+
Retailer 12
-
$15,372 CAD
$10,983 USD
View
Most Expensive
B
With Clarity
6552657128 · Oct 29
$19,699 CAD
$14,075 USD
View
12 more retailers have this diamond
Prices start from $10,992 CADSave up to $8,707 CAD

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
$10,992 CAD