Marquise|Natural|GIA

1.21ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 2558612489

Certificate GIA 2558612489

Diamond specifications and retailer prices

From $2,363 USD
As of November 5, 2026
Save $1,707 USD (42%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,070 USD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2558612489. Listed at 11 retailers as of November 5, 2026, with prices from $2,363 to $4,070, a $1,707 spread on the same certified stone. Wholesale Diamonds Direct lists it at $4,070. 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

1.21
Carat
I
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.03°
Pavilion angle42.12°
OriginNatural
Grading LabGIA
CertificateGIA 2558612489
Dimensions10.01 × 5.49 × 3.69 mm
L/W Ratio1.82
Culet sizeNone
Top View
10.01 mm5.49 mm1.21 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2558612489
Side View
Table 61.0%Crown 42.03°Girdle: THN-VTKPavilion 42.12°Culet: NoneDepth 67.1%

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 5
Current: $2,460 USD|Low: $2,350 USD|High: $4,489 USD|Avg: $3,117 USD|-7.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 6, 2026
Retailer 5$2,363 USD
Retailer 1$2,460 USD
Retailer 6$2,502 USD
Retailer 4$2,660 USD
Retailer 9$2,723 USD
Retailer 2$2,918 USD
Retailer 7$2,939 USD
Retailer 8$3,059 USD
Retailer 3$3,207 USD
Wholesale Diamonds Direct$4,070 USD

42 data points across 10 retailers

11 retailers$2,363 USD to $4,070 USD

A
Cheapest Retailer
-
$2,363 USD
A
Retailer 2
-
$2,460 USD
View
A
Retailer 3
-
$2,502 USD
View
B+
Retailer 4
-
$2,660 USD
View
B+
Retailer 5
-
$2,723 USD
View
B+
Retailer 6
-
$2,918 USD
View
B+
Retailer 7
-
$2,939 USD
View
B+
Retailer 8
-
$3,059 USD
View
B+
Retailer 9
-
$3,207 USD
View
B+
Retailer 10
-
$3,304 USD
View
Most Expensive
B
Wholesale Diamonds Direct
584564609 · Nov 6
$4,070 USD
View
10 more retailers have this diamond
Prices start from $2,363 USDSave up to $1,707 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
1.21ct Marquise
$2,363 USD