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Round|Lab Grown|IGI

1.22ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG825660121

Shape and cutting style on the report: Round brilliant

Certificate IGI LG825660121

Diamond specifications and retailer prices

From £194 GBP
$260 USD
As of October 29, 2026
Save £1,149 GBP (86%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,343 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825660121 or 825660121. Listed at 20 retailers as of October 29, 2026, with prices from £194 to £1,343, a £1,149 spread on the same certified stone. Brilliant Earth lists it at £1,343. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.22
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825660121
Dimensions6.86 × 6.80 × 4.25 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.86 mm6.80 mm1.22 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825660121
Side View
Table 57.0%Crown 35.7°Girdle: MediumPavilion 40.7°Culet: NoneDepth 62.3%

Caratlytics Score

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A+
Exceptional
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 29
Current: £1,343 GBP|Low: £193 GBP|High: £1,575 GBP|Avg: £571 GBP|-14.7%
Brilliant Earth
Retailer 2
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Retailer 11
Retailer 12
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Retailer 19
October 30, 2026
Retailer 7£194 GBP
Retailer 8£217 GBP
Retailer 3£225 GBP
Retailer 4£240 GBP
Retailer 10£240 GBP
Retailer 15£358 GBP
Retailer 5£401 GBP
Retailer 13£401 GBP
Retailer 14£414 GBP
Retailer 2£459 GBP
Retailer 6£540 GBP
Retailer 19£740 GBP
Retailer 11£774 GBP
Retailer 17£781 GBP
Retailer 9£812 GBP
Retailer 16£853 GBP
Retailer 12£970 GBP
Retailer 18£1,134 GBP
Brilliant Earth£1,343 GBP

36 data points across 19 retailers

20 retailers£194 GBP to £1,343 GBP

A+
Cheapest Retailer
-
£194 GBP
$260 USD
A
Retailer 2
-
£217 GBP
$291 USD
View
Final sale: no returns
A
Retailer 3
-
£225 GBP
$302 USD
View
A
Retailer 4
-
£240 GBP
$322 USD
View
A
Retailer 5
-
£240 GBP
$322 USD
View
A
Retailer 6
-
£358 GBP
$480 USD
View
A
Retailer 7
-
£401 GBP
$537 USD
View
A
Retailer 8
-
£401 GBP
€512 EUR
View
A
Retailer 9
-
£414 GBP
ZAR 8,951 ZAR
View
A
Retailer 10
-
£459 GBP
View
B+
Retailer 11
-
£540 GBP
$724 USD
View
B+
Retailer 12
-
£740 GBP
$991 USD
View
B+
Retailer 13
-
£774 GBP
$1,037 USD
View
B+
Retailer 14
-
£781 GBP
SGD 1,414 SGD
View
B+
Retailer 15
-
£812 GBP
$1,088 USD
View
B+
Retailer 16
-
£853 GBP
$1,143 USD
View
B+
Retailer 17
-
£970 GBP
View
Retailer 18
-
£1,134 GBP
$1,520 USD
View
Price last confirmed 9 days ago
Retailer 19
-
£1,134 GBP
$1,520 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
21434024A · Oct 29
£1,343 GBP
$1,800 USD
View
19 more retailers have this diamond
Prices start from £194 GBPSave up to £1,149 GBP

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
£194 GBP