Marquise|Natural|GIA

1.20ct E SI1 Marquise Natural Diamond

GD • E/SI1 • GIA 1558328161

Certificate GIA 1558328161

Diamond specifications and retailer prices

From $3,639 USD
As of November 4, 2026
Save $2,899 USD (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,538 USD at Wholesale Diamonds Direct · As of November 4, 2026
View at Wholesale Diamonds Direct

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1558328161. Listed at 14 retailers as of November 4, 2026, with prices from $3,639 to $6,538, a $2,899 spread on the same certified stone. Wholesale Diamonds Direct lists it at $6,538. 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

1.20
Carat
E
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.18°
Pavilion angle40.59°
OriginNatural
Grading LabGIA
CertificateGIA 1558328161
Dimensions9.88 × 5.42 × 3.67 mm
L/W Ratio1.82
Culet sizeNone
Top View
9.88 mm5.42 mm1.20 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558328161
Side View
Table 57.0%Crown 42.18°Girdle: THN-VTKPavilion 40.59°Culet: NoneDepth 67.7%

Caratlytics Score

How it works →
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 4
Current: $4,676 USD|Low: $3,639 USD|High: $6,930 USD|Avg: $4,775 USD|-6.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
November 6, 2026
Retailer 8$3,639 USD
Retailer 10$3,697 USD
Retailer 7$3,803 USD
Retailer 6$3,889 USD
Retailer 3$3,972 USD
Retailer 5$4,174 USD
Retailer 11$4,612 USD
Retailer 12$4,648 USD
Retailer 4$4,668 USD
Retailer 1$4,676 USD
Retailer 9$6,137 USD
Retailer 2$6,521 USD
Wholesale Diamonds Direct$6,538 USD

36 data points across 13 retailers

14 retailers$3,639 USD to $6,538 USD

A
Cheapest Retailer
-
$3,639 USD
A
Retailer 2
-
$3,697 USD
View
A
Retailer 3
-
$3,803 USD
View
A
Retailer 4
-
$3,889 USD
View
A
Retailer 5
-
$3,972 USD
View
B+
Retailer 6
-
$4,174 USD
View
B+
Retailer 7
-
$4,612 USD
View
B+
Retailer 8
-
$4,648 USD
View
B+
Retailer 9
-
$4,668 USD
View
B+
Retailer 10
-
$4,676 USD
View
B
Retailer 11
-
$5,212 USD
View
B
Retailer 12
-
$6,137 USD
View
B
Retailer 13
-
$6,521 USD
View
Most Expensive
B
Wholesale Diamonds Direct
612458820 · Nov 4
$6,538 USD
View
13 more retailers have this diamond
Prices start from $3,639 USDSave up to $2,899 USD

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
1.20ct Marquise
$3,639 USD