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Round|Lab Grown|IGI

1.22ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG823694899

Shape and cutting style on the report: Round brilliant

Certificate IGI LG823694899

Diamond specifications and retailer prices

From £343 GBP
$459 USD
As of October 29, 2026
Save £1,516 GBP (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,858 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 LG823694899 or 823694899. Listed at 21 retailers as of October 29, 2026, with prices from £343 to £1,858, a £1,516 spread on the same certified stone. Brilliant Earth lists it at £1,858. 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 angle35.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823694899
Dimensions6.79 × 6.84 × 4.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
HEARTS & ARROWS 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
6.79 mm6.84 mm1.22 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823694899
Side View
Table 57.0%Crown 35.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.2%

Caratlytics Score

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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 29
Current: £1,858 GBP|Low: £384 GBP|High: £1,989 GBP|Avg: £940 GBP|+0.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 5£384 GBP
Retailer 6£384 GBP
Retailer 17£468 GBP
Retailer 13£530 GBP
Retailer 3£591 GBP
Retailer 11£650 GBP
Retailer 7£665 GBP
Retailer 10£701 GBP
Retailer 12£730 GBP
Retailer 2£1,035 GBP
Retailer 15£1,075 GBP
Retailer 16£1,142 GBP
Retailer 9£1,345 GBP
Retailer 4£1,388 GBP
Retailer 8£1,507 GBP
Retailer 14£1,562 GBP
Brilliant Earth£1,858 GBP

42 data points across 17 retailers

21 retailers£343 GBP to £1,858 GBP

A
Cheapest Retailer
-
£343 GBP
$459 USD
A
Retailer 2
-
£384 GBP
$514 USD
View
A
Retailer 3
-
£384 GBP
$514 USD
View
Final sale: no returns
Retailer 4
-
£425 GBP
$569 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
£425 GBP
$569 USD
View
A
Retailer 6
-
£468 GBP
HK$4,900 HKD
View
B+
Retailer 7
-
£530 GBP
$710 USD
View
B+
Retailer 8
-
£591 GBP
$792 USD
View
B+
Retailer 9
-
£650 GBP
€829 EUR
View
B+
Retailer 10
-
£665 GBP
$891 USD
View
B+
Retailer 11
-
£701 GBP
View
B+
Retailer 12
-
£730 GBP
ZAR 15,799 ZAR
View
B
Retailer 13
-
£1,035 GBP
A$2,133 AUD
View
Retailer 14
-
£1,075 GBP
$1,440 USD
View
Price last confirmed 9 days ago
B
Retailer 15
-
£1,142 GBP
$1,530 USD
View
B
Retailer 16
-
£1,345 GBP
SGD 2,436 SGD
View
B
Retailer 17
-
£1,365 GBP
$1,829 USD
View
B
Retailer 18
-
£1,388 GBP
$1,860 USD
View
B
Retailer 19
-
£1,507 GBP
$2,020 USD
View
B
Retailer 20
-
£1,562 GBP
View
Most Expensive
B
Brilliant Earth
21061040A · Oct 29
£1,858 GBP
$2,490 USD
View
20 more retailers have this diamond
Prices start from £343 GBPSave up to £1,516 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
£343 GBP