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Round|Lab Grown|IGI

1.22ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG788620075

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788620075

Diamond specifications and retailer prices

From $164 USD
As of November 5, 2026
Save $789 USD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $953 USD at MOH London · As of November 2, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG788620075 or 788620075. Listed at 18 retailers as of November 2, 2026, with prices from $164 to $953, a $789 spread on the same certified stone. MOH London lists it at $953. 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
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788620075
Dimensions6.85 × 6.81 × 4.26 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.85 mm6.81 mm1.22 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788620075
Side View
Table 59.0%Crown 35.7°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.3%

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: $953 USD|Low: $158 USD|High: $964 USD|Avg: $440 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 11$164 USD
Retailer 4$191 USD
Retailer 12$204 USD
Retailer 2$352 USD
Retailer 6$355 USD
Retailer 7$356 USD
Retailer 13$366 USD
Retailer 3$454 USD
Retailer 9$455 USD
Retailer 10$542 USD
Retailer 8$570 USD
Retailer 5$655 USD
MOH London$953 USD

46 data points across 13 retailers

18 retailers$164 USD to $953 USD

A
Cheapest Retailer
-
$164 USD
A
Retailer 2
-
$191 USD
View
A
Retailer 3
-
$204 USD
View
Retailer 4
-
$204 USD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$352 USD
View
A
Retailer 6
-
$355 USD
View
A
Retailer 7
-
$356 USD
View
A
Retailer 8
-
$366 USD
View
A
Retailer 9
-
$376 USD
View
B+
Retailer 10
-
$454 USD
View
B+
Retailer 11
-
$455 USD
View
B+
Retailer 12
-
$542 USD
View
B+
Retailer 13
-
$550 USD
View
B+
Retailer 14
-
$570 USD
View
B
Retailer 15
-
$655 USD
View
B
Retailer 16
-
$692 USD
View
B
Retailer 17
-
$709 USD
View
Most Expensive
B
MOH London
LG788620075 · Nov 2
$953 USD
£750 GBP
View
17 more retailers have this diamond
Prices start from $164 USDSave up to $789 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.

A
1.22ct Round
$164 USD