Oval|Natural|GIA

1.21ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 2568507379

Certificate GIA 2568507379

Diamond specifications and retailer prices

From €2,299 EUR
As of November 5, 2026
Save €1,970 EUR (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €4,270 EUR at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded I 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 2568507379. Listed at 15 retailers as of November 5, 2026, with prices from €2,299 to €4,270, a €1,970 spread on the same certified stone. Helzberg Diamonds lists it at €4,270. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.9°
Pavilion angle38.65°
OriginNatural
Grading LabGIA
CertificateGIA 2568507379
Dimensions8.46 × 6.04 × 3.65 mm
L/W Ratio1.40
Culet sizeNone
Top View
8.46 mm6.04 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2568507379
Side View
Table 58.0%Crown 35.9°Girdle: STK-THKPavilion 38.65°Culet: NDepth 60.4%

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 5
Current: €4,270 EUR|Low: €2,270 EUR|High: €4,270 EUR|Avg: €2,991 EUR
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
Retailer 14
Retailer 15
Retailer 16
November 7, 2026
Retailer 11€2,299 EUR
Retailer 15€2,442 EUR
Retailer 12€2,451 EUR
Retailer 5€2,464 EUR
Retailer 14€2,468 EUR
Retailer 7€2,483 EUR
Retailer 2€2,653 EUR
Retailer 6€2,703 EUR
Retailer 16€2,901 EUR
Retailer 10€2,992 EUR
Retailer 8€2,992 EUR
Retailer 9€3,114 EUR
Retailer 13€3,137 EUR
Retailer 4€3,785 EUR
Retailer 3€4,043 EUR
Helzberg Diamonds€4,270 EUR

26 data points across 16 retailers

15 retailers€2,299 EUR to €4,270 EUR

A
Cheapest Retailer
-
€2,299 EUR
B+
Retailer 2
-
€2,442 EUR
View
B+
Retailer 3
-
€2,451 EUR
View
B+
Retailer 4
-
€2,464 EUR
View
B+
Retailer 5
-
€2,468 EUR
View
B+
Retailer 6
-
€2,483 EUR
View
B+
Retailer 7
-
€2,653 EUR
View
B+
Retailer 8
-
€2,703 EUR
View
B+
Retailer 9
-
€2,901 EUR
View
B+
Retailer 10
-
€2,992 EUR
View
B
Retailer 11
-
€2,992 EUR
View
B+
Retailer 12
-
€3,114 EUR
View
B
Retailer 13
-
€3,785 EUR
View
B
Retailer 14
-
€4,043 EUR
View
Most Expensive
B
Helzberg Diamonds
XZRILMOLGNJNP · Nov 6
€4,270 EUR
$4,767 USD
View
14 more retailers have this diamond
Prices start from €2,299 EURSave up to €1,970 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 Oval
€2,299 EUR