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Marquise|Natural|GIA

1.21ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 2245057364

Certificate GIA 2245057364

Diamond specifications and retailer prices

From €3,258 EUR
As of November 4, 2026
Save €2,581 EUR (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €5,839 EUR at Helzberg Diamonds · As of November 6, 2026
View at Helzberg 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2245057364. Listed at 13 retailers as of November 4, 2026, with prices from €3,258 to €5,839, a €2,581 spread on the same certified stone. Helzberg Diamonds lists it at €5,839. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.96°
Pavilion angle37.63°
OriginNatural
Grading LabGIA
CertificateGIA 2245057364
Dimensions10.52 × 5.56 × 3.39 mm
L/W Ratio1.89
Culet sizeNone
Top View
10.52 mm5.56 mm1.21 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245057364
Side View
Table 58.0%Crown 39.96°Girdle: STK-THKPavilion 37.63°Culet: NoneDepth 61.0%

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 4
Current: €5,839 EUR|Low: €3,258 EUR|High: €6,266 EUR|Avg: €4,132 EUR|-6.8%
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
November 6, 2026
Retailer 10€3,258 EUR
Retailer 4€3,340 EUR
Retailer 8€3,405 EUR
Retailer 7€3,481 EUR
Retailer 3€3,555 EUR
Retailer 5€3,583 EUR
Retailer 6€3,737 EUR
Retailer 9€4,030 EUR
Retailer 12€4,129 EUR
Retailer 13€4,161 EUR
Retailer 2€4,187 EUR
Retailer 11€5,816 EUR
Helzberg Diamonds€5,839 EUR

39 data points across 13 retailers

13 retailers€3,258 EUR to €5,839 EUR

A
Cheapest Retailer
-
€3,258 EUR
A
Retailer 2
-
€3,340 EUR
View
A
Retailer 3
-
€3,405 EUR
View
B+
Retailer 4
-
€3,481 EUR
View
B+
Retailer 5
-
€3,555 EUR
View
Retailer 6
-
€3,583 EUR
View
Price last confirmed 10 days ago
B+
Retailer 7
-
€3,737 EUR
View
B+
Retailer 8
-
€4,030 EUR
View
B+
Retailer 9
-
€4,129 EUR
View
B+
Retailer 10
-
€4,161 EUR
View
B+
Retailer 11
-
€4,187 EUR
View
B
Retailer 12
-
€5,816 EUR
View
Most Expensive
B
Helzberg Diamonds
XZRIIKLGLNJMK · Nov 6
€5,839 EUR
$6,519 USD
View
12 more retailers have this diamond
Prices start from €3,258 EURSave up to €2,581 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.

A
1.21ct Marquise
€3,258 EUR