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Marquise|Natural|GIA

1.21ct F SI2 Marquise Natural Diamond

GD • F/SI2 • GIA 1555561523

Certificate GIA 1555561523

Diamond specifications and retailer prices

From €2,871 EUR
As of November 4, 2026
Save €2,588 EUR (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €5,460 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1555561523. Listed at 12 retailers as of November 4, 2026, with prices from €2,871 to €5,460, a €2,588 spread on the same certified stone. Helzberg Diamonds lists it at €5,460. 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
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.64°
Pavilion angle40.64°
OriginNatural
Grading LabGIA
CertificateGIA 1555561523
Dimensions9.96 × 5.47 × 3.68 mm
L/W Ratio1.82
Culet sizeNone
Top View
9.96 mm5.47 mm1.21 ctF / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555561523
Side View
Table 59.0%Crown 43.64°Girdle: STK-VTKPavilion 40.64°Culet: NoneDepth 67.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €5,460 EUR|Low: €2,871 EUR|High: €5,577 EUR|Avg: €3,832 EUR|-2.1%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 7€2,871 EUR
Retailer 6€3,001 EUR
Retailer 3€3,131 EUR
Retailer 2€3,316 EUR
Retailer 4€3,455 EUR
Retailer 11€3,459 EUR
Retailer 9€3,663 EUR
Retailer 10€3,716 EUR
Retailer 5€3,819 EUR
Retailer 8€5,147 EUR
Helzberg Diamonds€5,460 EUR

41 data points across 11 retailers

12 retailers€2,871 EUR to €5,460 EUR

A
Cheapest Retailer
-
€2,871 EUR
A
Retailer 2
-
€3,001 EUR
View
B+
Retailer 3
-
€3,131 EUR
View
B+
Retailer 4
-
€3,316 EUR
View
B+
Retailer 5
-
€3,455 EUR
View
B+
Retailer 6
-
€3,459 EUR
View
B+
Retailer 7
-
€3,663 EUR
View
B+
Retailer 8
-
€3,716 EUR
View
B+
Retailer 9
-
€3,819 EUR
View
B
Retailer 10
-
€4,030 EUR
View
B
Retailer 11
-
€5,147 EUR
View
Most Expensive
B
Helzberg Diamonds
XZRHLLLLMHLIJ · Nov 6
€5,460 EUR
$6,096 USD
View
11 more retailers have this diamond
Prices start from €2,871 EURSave up to €2,588 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
€2,871 EUR