Marquise|Natural|GIA

1.20ct E SI1 Marquise Natural Diamond

VG • E/SI1 • GIA 2233837111

Certificate GIA 2233837111

Diamond specifications and retailer prices

From $5,513 USD
As of November 4, 2026
Save $4,738 USD (46%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $10,251 USD at MOH London · As of November 4, 2026
View at MOH London

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2233837111. Listed at 21 retailers as of November 4, 2026, with prices from $5,513 to $10,251, a $4,738 spread on the same certified stone. MOH London lists it at $10,251. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.77°
Pavilion angle40.77°
OriginNatural
Grading LabGIA
CertificateGIA 2233837111
Dimensions10.16 × 5.48 × 3.53 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.16 mm5.48 mm1.20 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2233837111
Side View
Table 62.0%Crown 39.77°Girdle: MED-VTKPavilion 40.77°Culet: NoneDepth 64.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $10,251 USD|Low: $5,513 USD|High: $10,784 USD|Avg: $7,273 USD|-1.3%
MOH London
Retailer 2
Retailer 3
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Retailer 6
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Retailer 8
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Retailer 11
Retailer 12
Retailer 13
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Retailer 19
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Retailer 21
November 6, 2026
Retailer 11$5,513 USD
Retailer 7$5,521 USD
Retailer 16$5,880 USD
Retailer 8$5,883 USD
Retailer 21$6,227 USD
Retailer 17$6,252 USD
Retailer 5$6,321 USD
Retailer 12$6,321 USD
Retailer 19$6,321 USD
Retailer 2$6,625 USD
Retailer 9$6,646 USD
Retailer 3$7,030 USD
Retailer 18$7,030 USD
Retailer 14$7,146 USD
Retailer 20$7,270 USD
Retailer 4$7,384 USD
Retailer 15$7,621 USD
Retailer 10$7,690 USD
Retailer 13$8,512 USD
Retailer 6$10,216 USD
MOH London$10,251 USD

38 data points across 21 retailers

21 retailers$5,513 USD to $10,251 USD

B+
Cheapest Retailer
-
$5,513 USD
B+
Retailer 2
-
$5,521 USD
View
B+
Retailer 3
-
$5,880 USD
View
B+
Retailer 4
-
$5,883 USD
View
B
Retailer 5
-
$6,227 USD
View
B
Retailer 6
-
$6,252 USD
View
B
Retailer 7
-
$6,321 USD
View
Retailer 8
-
$6,321 USD
View
Price last confirmed 8 days ago
B
Retailer 9
-
$6,321 USD
View
B
Retailer 10
-
$6,625 USD
View
B
Retailer 11
-
$6,646 USD
View
B
Retailer 12
-
$7,030 USD
View
B
Retailer 13
-
$7,030 USD
View
Retailer 14
-
$7,146 USD
View
Price last confirmed 15 days ago
B
Retailer 15
-
$7,270 USD
View
B
Retailer 16
-
$7,384 USD
View
B
Retailer 17
-
$7,621 USD
View
Retailer 18
-
$7,690 USD
View
Price last confirmed 14 days ago
B
Retailer 19
-
$8,512 USD
View
B
Retailer 20
-
$10,216 USD
View
Most Expensive
B
MOH London
DC8B36635 · Nov 4
$10,251 USD
£8,072 GBP
View
20 more retailers have this diamond
Prices start from $5,513 USDSave up to $4,738 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.

B+
1.20ct Marquise
$5,513 USD