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Round|Lab Grown|IGI

1.22ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG660459228

Certificate IGI LG660459228

Diamond specifications and retailer prices

From $800 USD
As of October 30, 2026
Save $530 USD (40%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,330 USD at Jared · As of October 30, 2026
View at Jared

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 LG660459228 or 660459228. Listed at 3 retailers as of October 30, 2026, with prices from $800 to $1,330, a $530 spread on the same certified stone. Jared lists it at $1,330. 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
OriginLab Grown
Grading LabIGI
CertificateIGI LG660459228
Dimensions6.88 × 6.93 mm
L/W Ratio1.01
Top View
6.88 mm6.93 mm1.22 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660459228
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 60.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,330 USD|Low: $800 USD|High: $1,330 USD|Avg: $1,036 USD
Jared
Retailer 2
Retailer 3
July 10, 2026
Retailer 2$800 USD
Retailer 3$800 USD
Jared$1,330 USD

9 data points across 3 retailers

3 retailers$800 USD to $1,330 USD

B
Cheapest Retailer
-
$800 USD
B
Retailer 2
-
$800 USD
View
Most Expensive
B
Jared
154529048 · Oct 30
$1,330 USD
View
2 more retailers have this diamond
Prices start from $800 USDSave up to $530 USD

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.

B
1.22ct Round
$800 USD