Marquise|Natural|GIA

1.21ct H SI1 Marquise Natural Diamond

GD • H/SI1 • GIA 6562645742

Certificate GIA 6562645742

Diamond specifications and retailer prices

From $3,378 USD
As of November 5, 2026
Save $3,426 USD (50%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,804 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6562645742. Listed at 13 retailers as of November 5, 2026, with prices from $3,378 to $6,804, a $3,426 spread on the same certified stone. Wholesale Diamonds Direct lists it at $6,804. 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
H
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.51°
Pavilion angle40.11°
OriginNatural
Grading LabGIA
CertificateGIA 6562645742
Dimensions9.83 × 5.40 × 3.60 mm
L/W Ratio1.82
Culet sizeNone
Top View
9.83 mm5.40 mm1.21 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562645742
Side View
Table 61.0%Crown 43.51°Girdle: THK-VTKPavilion 40.11°Culet: NDepth 66.7%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $4,903 USD|Low: $3,372 USD|High: $6,804 USD|Avg: $4,665 USD|+0.1%
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 5$3,378 USD
Retailer 8$3,843 USD
Retailer 4$3,873 USD
Retailer 9$3,949 USD
Retailer 3$4,040 USD
Retailer 7$4,105 USD
Retailer 12$4,163 USD
Retailer 6$4,298 USD
Retailer 11$4,822 USD
Retailer 2$4,850 USD
Retailer 1$4,903 USD
Retailer 10$6,432 USD
Wholesale Diamonds Direct$6,804 USD

21 data points across 13 retailers

13 retailers$3,378 USD to $6,804 USD

B+
Cheapest Retailer
-
$3,378 USD
B
Retailer 2
-
$3,843 USD
View
B
Retailer 3
-
$3,873 USD
View
B
Retailer 4
-
$3,949 USD
View
B
Retailer 5
-
$4,040 USD
View
B
Retailer 6
-
$4,105 USD
View
B
Retailer 7
-
$4,163 USD
View
B
Retailer 8
-
$4,298 USD
View
B
Retailer 9
-
$4,822 USD
View
B
Retailer 10
-
$4,850 USD
View
B
Retailer 11
-
$4,903 USD
View
C
Retailer 12
-
$6,432 USD
View
Most Expensive
C
Wholesale Diamonds Direct
564759975 · Nov 6
$6,804 USD
View
12 more retailers have this diamond
Prices start from $3,378 USDSave up to $3,426 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+
1.21ct Marquise
$3,378 USD