Marquise|Natural|GIA

1.20ct J SI1 Marquise Natural Diamond

VG • J/SI1 • GIA 2241098365

Certificate GIA 2241098365

Diamond specifications and retailer prices

From $3,400 USD
As of October 31, 2026
Save $2,692 USD (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,092 USD at Helzberg Diamonds · As of November 1, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2241098365. Listed at 15 retailers as of October 31, 2026, with prices from $3,400 to $6,092, a $2,692 spread on the same certified stone. Helzberg Diamonds lists it at $6,092. 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
J
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.69°
Pavilion angle39.03°
OriginNatural
Grading LabGIA
CertificateGIA 2241098365
Dimensions10.75 × 5.28 × 3.41 mm
L/W Ratio2.04
Culet sizeNone
Top View
10.75 mm5.28 mm1.20 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2241098365
Side View
Table 57.0%Crown 36.69°Girdle: MED-VTKPavilion 39.03°Culet: NDepth 64.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: $6,092 USD|Low: $3,400 USD|High: $6,092 USD|Avg: $4,339 USD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 10$3,400 USD
Retailer 9$3,456 USD
Retailer 6$3,480 USD
Retailer 5$3,634 USD
Retailer 11$3,685 USD
Retailer 4$3,711 USD
Retailer 2$3,931 USD
Retailer 13$4,324 USD
Retailer 3$4,373 USD
Retailer 8$4,379 USD
Retailer 7$4,717 USD
Retailer 12$5,734 USD
Retailer 14$6,048 USD
Helzberg Diamonds$6,092 USD

17 data points across 14 retailers

15 retailers$3,400 USD to $6,092 USD

B
Cheapest Retailer
-
$3,400 USD
B
Retailer 2
-
$3,456 USD
View
B
Retailer 3
-
$3,464 USD
SGD 4,681 SGD
View
B
Retailer 4
-
$3,480 USD
View
B
Retailer 5
-
$3,634 USD
View
B
Retailer 6
-
$3,685 USD
View
B
Retailer 7
-
$3,711 USD
SGD 5,015 SGD
View
B
Retailer 8
-
$3,931 USD
£3,096 GBP
View
B
Retailer 9
-
$4,324 USD
View
B
Retailer 10
-
$4,373 USD
View
B
Retailer 11
-
$4,379 USD
€4,170 EUR
View
B
Retailer 12
-
$4,717 USD
View
C
Retailer 13
-
$5,734 USD
View
C
Retailer 14
-
$6,048 USD
View
Most Expensive
C
Helzberg Diamonds
XZRIIKHGPOJML · Nov 1
$6,092 USD
View
14 more retailers have this diamond
Prices start from $3,400 USDSave up to $2,692 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
$3,400 USD