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Round|Lab Grown|IGI

1.22ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG776611628

Shape and cutting style on the report: Round brilliant

Certificate IGI LG776611628

Diamond specifications and retailer prices

From €235 EUR
$262 USD
As of October 30, 2026
Save €584 EUR (71%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €818 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.22ct lab-grown round diamond

This 1.22ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG776611628 or 776611628. Listed at 6 retailers as of October 29, 2026, with prices from €235 to €818, a €584 spread on the same certified stone. MOH London lists it at €818. 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
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776611628
Dimensions6.95 × 6.92 × 4.16 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.95 mm6.92 mm1.22 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776611628
Side View
Table 60.0%Crown 33.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 59.9%

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: Oct 30
Current: €818 EUR|Low: €235 EUR|High: €824 EUR|Avg: €396 EUR|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 5€235 EUR
Retailer 3€301 EUR
Retailer 2€305 EUR
Retailer 6€334 EUR
Retailer 4€399 EUR
MOH London€818 EUR

40 data points across 6 retailers

6 retailers€235 EUR to €818 EUR

B+
Cheapest Retailer
-
€235 EUR
$262 USD
A
Retailer 2
-
€301 EUR
View
A
Retailer 3
-
€305 EUR
£268 GBP
View
A
Retailer 4
-
€334 EUR
$373 USD
View
B+
Retailer 5
-
€399 EUR
$446 USD
View
Most Expensive
B
MOH London
LG776611628 · Oct 29
€818 EUR
£720 GBP
View
5 more retailers have this diamond
Prices start from €235 EURSave up to €584 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
1.22ct Round
€235 EUR