Marquise|Natural|GIA

1.21ct F SI1 Marquise Natural Diamond

VG • F/SI1 • GIA 3545928354

Certificate GIA 3545928354

Diamond specifications and retailer prices

From $5,290 USD
As of November 5, 2026
Save $1,617 USD (23%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,907 USD at Cape Diamonds · As of November 5, 2026
View at Cape Diamonds

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded F 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 3545928354. Listed at 10 retailers as of November 5, 2026, with prices from $5,290 to $6,907, a $1,617 spread on the same certified stone. Cape Diamonds lists it at $6,907. 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
F
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle37.86°
Pavilion angle41.5°
OriginNatural
Grading LabGIA
CertificateGIA 3545928354
Dimensions10.48 × 5.53 × 3.61 mm
L/W Ratio1.90
Top View
10.48 mm5.53 mm1.21 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 3545928354
Side View
Table 60.0%Crown 37.86°Girdle: MED-VTKPavilion 41.5°Culet: NoneDepth 65.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $6,907 USD|Low: $4,408 USD|High: $7,804 USD|Avg: $5,680 USD
Cape 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
Retailer 15
Retailer 16
Retailer 17
November 5, 2026
Retailer 7$4,408 USD
Retailer 6$4,565 USD
Retailer 5$4,683 USD
Retailer 16$4,937 USD
Retailer 4$5,018 USD
Retailer 17$5,290 USD
Retailer 2$5,488 USD
Retailer 14$5,586 USD
Retailer 10$5,617 USD
Retailer 13$5,661 USD
Retailer 15$5,666 USD
Retailer 11$6,396 USD
Retailer 9$6,491 USD
Retailer 12$6,532 USD
Retailer 3$6,894 USD
Cape Diamonds$6,907 USD
Retailer 8$7,804 USD

18 data points across 17 retailers

10 retailers$5,290 USD to $6,907 USD

Retailer 1
-
$4,937 USD
Price last confirmed 11 days ago
B
Retailer 2
-
$5,290 USD
View
B
Retailer 3
-
$5,488 USD
View
Retailer 4
-
$5,586 USD
View
Price last confirmed 44 days ago
B
Retailer 5
-
$5,617 USD
View
B
Retailer 6
-
$5,661 USD
View
B
Retailer 7
-
$5,666 USD
View
Retailer 8
-
$6,396 USD
View
Price last confirmed 10 days ago
B
Retailer 9
-
$6,532 USD
View
Most Expensive
B
Cape Diamonds
cert_3545928354 · Nov 5
$6,907 USD
ZAR 111,588 ZAR
View
9 more retailers have this diamond
Prices start from $5,290 USDSave up to $1,617 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
$5,290 USD