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Marquise|Natural|GIA

1.21ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 2245015530

Certificate GIA 2245015530

Diamond specifications and retailer prices

From €2,439 EUR
As of November 4, 2026
Save €2,199 EUR (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €4,638 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2245015530. Listed at 12 retailers as of November 4, 2026, with prices from €2,439 to €4,638, a €2,199 spread on the same certified stone. Helzberg Diamonds lists it at €4,638. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle39.86°
Pavilion angle37.96°
OriginNatural
Grading LabGIA
CertificateGIA 2245015530
Dimensions10.63 × 5.56 × 3.40 mm
L/W Ratio1.91
Culet sizeNone
Top View
10.63 mm5.56 mm1.21 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2245015530
Side View
Table 58.0%Crown 39.86°Girdle: MED-THKPavilion 37.96°Culet: NoneDepth 61.1%

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: €4,638 EUR|Low: €2,439 EUR|High: €5,079 EUR|Avg: €3,248 EUR|-8.7%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 8€2,439 EUR
Retailer 7€2,463 EUR
Retailer 5€2,498 EUR
Retailer 9€2,630 EUR
Retailer 4€2,847 EUR
Retailer 3€2,938 EUR
Retailer 11€3,138 EUR
Retailer 10€3,216 EUR
Retailer 2€3,244 EUR
Retailer 6€4,377 EUR
Helzberg Diamonds€4,638 EUR

38 data points across 11 retailers

12 retailers€2,439 EUR to €4,638 EUR

A
Cheapest Retailer
-
€2,439 EUR
A
Retailer 2
-
€2,463 EUR
View
A
Retailer 3
-
€2,498 EUR
View
A
Retailer 4
-
€2,630 EUR
View
A
Retailer 5
-
€2,847 EUR
View
B+
Retailer 6
-
€2,938 EUR
View
B+
Retailer 7
-
€3,138 EUR
View
B+
Retailer 8
-
€3,216 EUR
View
B+
Retailer 9
-
€3,244 EUR
View
B
Retailer 10
-
€3,528 EUR
View
B
Retailer 11
-
€4,377 EUR
View
Most Expensive
B
Helzberg Diamonds
XZRIIKLGHLLJG · Nov 6
€4,638 EUR
$5,178 USD
View
11 more retailers have this diamond
Prices start from €2,439 EURSave up to €2,199 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
€2,439 EUR