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Round|Lab Grown|IGI

1.22ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG534248672

Shape and cutting style on the report: Round brilliant

Certificate IGI LG534248672

Diamond specifications and retailer prices

From £118 GBP
As of November 5, 2026
Save £1,019 GBP (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,137 GBP at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG534248672 or 534248672. Listed at 16 retailers as of November 5, 2026, with prices from £118 to £1,137, a £1,019 spread on the same certified stone. Do Amore Diamonds lists it at £1,137. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG534248672
Dimensions6.81 × 6.75 × 4.25 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
6.81 mm6.75 mm1.22 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG534248672
Side View
Table 57.5%Crown 34.9°Girdle: MediumPavilion 41.2°Culet: NoneDepth 62.7%

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: Nov 5
Current: £1,137 GBP|Low: £114 GBP|High: £1,137 GBP|Avg: £372 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
Retailer 16
November 6, 2026
Retailer 15£118 GBP
Retailer 5£132 GBP
Retailer 14£137 GBP
Retailer 12£146 GBP
Retailer 16£146 GBP
Retailer 4£199 GBP
Retailer 7£220 GBP
Retailer 9£286 GBP
Retailer 2£317 GBP
Retailer 10£349 GBP
Retailer 6£389 GBP
Retailer 3£497 GBP
Retailer 13£519 GBP
Retailer 8£648 GBP
Retailer 11£756 GBP
Do Amore Diamonds£1,137 GBP

36 data points across 16 retailers

16 retailers£118 GBP to £1,137 GBP

A
Cheapest Retailer
-
£118 GBP
A
Retailer 2
-
£132 GBP
View
Final sale: no returns
A
Retailer 3
-
£137 GBP
View
A
Retailer 4
-
£146 GBP
View
Retailer 5
-
£146 GBP
View
Price last confirmed 12 days ago
B+
Retailer 6
-
£199 GBP
View
A
Retailer 7
-
£220 GBP
View
A
Retailer 8
-
£286 GBP
View
B+
Retailer 9
-
£317 GBP
View
B+
Retailer 10
-
£349 GBP
View
B+
Retailer 11
-
£389 GBP
View
B
Retailer 12
-
£497 GBP
View
B
Retailer 13
-
£519 GBP
View
B
Retailer 14
-
£648 GBP
View
B
Retailer 15
-
£756 GBP
View
Most Expensive
B
Do Amore Diamonds
27-00C8E581F · Nov 6
£1,137 GBP
$1,530 USD
View
15 more retailers have this diamond
Prices start from £118 GBPSave up to £1,019 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
£118 GBP