Marquise|Natural|GIA

1.20ct F SI2 Marquise Natural Diamond

VG • F/SI2 • GIA 3555615862

Certificate GIA 3555615862

Diamond specifications and retailer prices

From $2,774 USD
As of November 4, 2026
Save $2,504 USD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,278 USD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3555615862. Listed at 12 retailers as of November 4, 2026, with prices from $2,774 to $5,278, a $2,504 spread on the same certified stone. Helzberg Diamonds lists it at $5,278. 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
F
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.74°
Pavilion angle39.75°
OriginNatural
Grading LabGIA
CertificateGIA 3555615862
Dimensions10.22 × 5.50 × 3.54 mm
L/W Ratio1.86
Culet sizeNone
Top View
10.22 mm5.50 mm1.20 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3555615862
Side View
Table 58.0%Crown 39.74°Girdle: THN-VTKPavilion 39.75°Culet: NoneDepth 64.3%

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: $5,278 USD|Low: $2,774 USD|High: $5,663 USD|Avg: $3,728 USD|-6.8%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 6$2,774 USD
Retailer 5$2,842 USD
Retailer 7$2,991 USD
Retailer 3$3,172 USD
Retailer 4$3,239 USD
Retailer 10$3,342 USD
Retailer 8$3,567 USD
Retailer 9$3,651 USD
Retailer 2$3,689 USD
Retailer 11$4,995 USD
Helzberg Diamonds$5,278 USD

39 data points across 11 retailers

12 retailers$2,774 USD to $5,278 USD

A
Cheapest Retailer
-
$2,774 USD
A
Retailer 2
-
$2,842 USD
View
A
Retailer 3
-
$2,991 USD
View
A
Retailer 4
-
$3,172 USD
View
A
Retailer 5
-
$3,239 USD
View
A
Retailer 6
-
$3,342 USD
View
B+
Retailer 7
-
$3,567 USD
View
B+
Retailer 8
-
$3,651 USD
View
B+
Retailer 9
-
$3,689 USD
View
B+
Retailer 10
-
$4,096 USD
View
B
Retailer 11
-
$4,995 USD
View
Most Expensive
B
Helzberg Diamonds
XZRJLLLMHLOMI · Nov 6
$5,278 USD
View
11 more retailers have this diamond
Prices start from $2,774 USDSave up to $2,504 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
$2,774 USD