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Round|Lab Grown|IGI

1.22ct D SI2 Round Lab Grown Diamond

EX • D/SI2 • IGI LG510172858

Certificate IGI LG510172858

Diamond specifications and retailer prices

From €1,303 EUR
$1,456 USD
As of November 1, 2026
1 retailer carries this diamond
Only listing: €1,303 EUR at B2C Jewels
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at B2C Jewels

About this 1.22ct lab-grown round diamond

This 1.22ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG510172858 or 510172858. Listed at a single retailer as of November 1, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.22
Carat
D
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG510172858
Dimensions6.89 × 6.83 mm
L/W Ratio1.01
Top View
6.89 mm6.83 mm1.22 ctD / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG510172858
Side View
Table 57.5%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.5%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 1
Current: €1,303 EUR|Low: €1,242 EUR|High: €2,139 EUR|Avg: €1,581 EUR|-39.1%
September 23, 2026
B2C Jewels€1,303 EUR

4 data points across 1 retailer

1 retailer

C
B2C Jewels
20039115 · Nov 1
€1,303 EUR
$1,456 USD
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C
1.22ct Round
€1,303 EUR