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Marquise|Natural|GIA

1.21ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 6551452417

Certificate GIA 6551452417

Diamond specifications and retailer prices

From €2,989 EUR
$3,353 USD
As of November 2, 2026
5 retailers carry this diamond
Most expensive: €3,814 EUR at Wholesale Diamonds Direct · As of October 12, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551452417. Listed at 5 retailers as of November 2, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.21
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.41°
Pavilion angle40.27°
OriginNatural
Grading LabGIA
CertificateGIA 6551452417
Dimensions10.69 × 5.65 × 3.49 mm
L/W Ratio1.89
Culet sizeNone
Top View
10.69 mm5.65 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551452417
Side View
Table 60.0%Crown 38.41°Girdle: MED-THKPavilion 40.27°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: €1,867 EUR|Low: €1,865 EUR|High: €4,064 EUR|Avg: €2,882 EUR|-5.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
October 13, 2026
Retailer 2€1,865 EUR
Retailer 1€1,867 EUR
Retailer 5€2,305 EUR
Retailer 3€2,326 EUR
Retailer 7€2,554 EUR
Retailer 6€2,847 EUR
Retailer 10€2,989 EUR
Retailer 4€3,012 EUR
Retailer 9€3,641 EUR
Retailer 8€3,665 EUR
Wholesale Diamonds Direct€3,814 EUR

17 data points across 11 retailers

5 retailers

Retailer 1
-
€2,305 EUR
$2,585 USD
Price last confirmed 18 days ago
Retailer 2
-
€2,326 EUR
$2,609 USD
View
Price last confirmed 19 days ago
Retailer 3
-
€2,554 EUR
SGD 3,871 SGD
View
Price last confirmed 18 days ago
B+
Retailer 4
-
€2,989 EUR
$3,353 USD
View
Most Expensive
Wholesale Diamonds Direct
262935531 · Oct 12
€3,814 EUR
$4,278 USD
View
Price last confirmed 21 days ago
4 more retailers have this diamond
Prices start from €2,989 EUR

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
€2,989 EUR