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Round|Lab Grown|IGI

1.22ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG842652000

Shape and cutting style on the report: Round brilliant

Certificate IGI LG842652000

Diamond specifications and retailer prices

From £191 GBP
$255 USD
As of October 29, 2026
Save £1,108 GBP (85%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,299 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG842652000 or 842652000. Listed at 20 retailers as of October 29, 2026, with prices from £191 to £1,299, a £1,108 spread on the same certified stone. Brilliant Earth lists it at £1,299. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842652000
Dimensions6.83 × 6.87 × 4.23 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
6.83 mm6.87 mm1.22 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842652000
Side View
Table 57.0%Crown 34.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.8%

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: £1,299 GBP|Low: £191 GBP|High: £1,299 GBP|Avg: £491 GBP
Brilliant Earth
Retailer 2
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October 30, 2026
Retailer 14£191 GBP
Retailer 19£213 GBP
Retailer 10£222 GBP
Retailer 9£237 GBP
Retailer 11£240 GBP
Retailer 18£260 GBP
Retailer 20£319 GBP
Retailer 7£323 GBP
Retailer 2£377 GBP
Retailer 15£393 GBP
Retailer 4£407 GBP
Retailer 17£426 GBP
Retailer 13£451 GBP
Retailer 3£577 GBP
Retailer 12£736 GBP
Retailer 8£762 GBP
Retailer 6£764 GBP
Retailer 16£955 GBP
Retailer 5£1,014 GBP
Brilliant Earth£1,299 GBP

18 data points across 20 retailers

20 retailers£191 GBP to £1,299 GBP

A+
Cheapest Retailer
-
£191 GBP
$255 USD
A
Retailer 2
-
£213 GBP
$284 USD
View
Final sale: no returns
A
Retailer 3
-
£222 GBP
$295 USD
View
A
Retailer 4
-
£237 GBP
$316 USD
View
A
Retailer 5
-
£240 GBP
$319 USD
View
A
Retailer 6
-
£260 GBP
HK$2,700 HKD
View
A
Retailer 7
-
£319 GBP
$425 USD
View
A
Retailer 8
-
£323 GBP
$430 USD
View
A
Retailer 9
-
£377 GBP
View
A
Retailer 10
-
£393 GBP
€499 EUR
View
A
Retailer 11
-
£407 GBP
ZAR 8,761 ZAR
View
A
Retailer 12
-
£426 GBP
$567 USD
View
A
Retailer 13
-
£451 GBP
View
B+
Retailer 14
-
£577 GBP
A$1,182 AUD
View
B+
Retailer 15
-
£736 GBP
$980 USD
View
B+
Retailer 16
-
£762 GBP
$1,015 USD
View
B+
Retailer 17
-
£764 GBP
SGD 1,375 SGD
View
B+
Retailer 18
-
£955 GBP
View
B
Retailer 19
-
£1,014 GBP
$1,350 USD
View
Most Expensive
B
Brilliant Earth
21813149A · Oct 29
£1,299 GBP
$1,730 USD
View
19 more retailers have this diamond
Prices start from £191 GBPSave up to £1,108 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
£191 GBP