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Round|Lab Grown|IGI

1.22ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG815697617

Shape and cutting style on the report: Round brilliant

Certificate IGI LG815697617

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)
21 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 LG815697617 or 815697617. Listed at 21 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 angle35.8°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815697617
Dimensions6.84 × 6.79 × 4.24 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
6.84 mm6.79 mm1.22 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815697617
Side View
Table 58.0%Crown 35.8°Girdle: MediumPavilion 41°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: £1,343 GBP|Low: £193 GBP|High: £1,575 GBP|Avg: £571 GBP|-14.7%
Brilliant Earth
Retailer 2
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Retailer 21
October 30, 2026
Retailer 9£194 GBP
Retailer 10£217 GBP
Retailer 4£225 GBP
Retailer 5£240 GBP
Retailer 12£240 GBP
Retailer 18£358 GBP
Retailer 2£383 GBP
Retailer 6£401 GBP
Retailer 16£401 GBP
Retailer 17£414 GBP
Retailer 7£428 GBP
Retailer 13£459 GBP
Retailer 8£540 GBP
Retailer 3£740 GBP
Retailer 14£774 GBP
Retailer 20£781 GBP
Retailer 11£812 GBP
Retailer 19£853 GBP
Retailer 15£970 GBP
Retailer 21£1,134 GBP
Brilliant Earth£1,343 GBP

25 data points across 21 retailers

21 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
-
£383 GBP
View
A
Retailer 8
-
£401 GBP
$537 USD
View
A
Retailer 9
-
£401 GBP
€512 EUR
View
A
Retailer 10
-
£414 GBP
ZAR 8,951 ZAR
View
A
Retailer 11
-
£428 GBP
$574 USD
View
A
Retailer 12
-
£459 GBP
View
B+
Retailer 13
-
£540 GBP
$724 USD
View
B+
Retailer 14
-
£740 GBP
$991 USD
View
B+
Retailer 15
-
£774 GBP
$1,037 USD
View
B+
Retailer 16
-
£781 GBP
SGD 1,414 SGD
View
B+
Retailer 17
-
£812 GBP
$1,088 USD
View
B+
Retailer 18
-
£853 GBP
$1,143 USD
View
B+
Retailer 19
-
£970 GBP
View
Retailer 20
-
£1,134 GBP
$1,520 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
21422555A · Oct 29
£1,343 GBP
$1,800 USD
View
20 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