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Round|Lab Grown|IGI

1.20ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG835667802

Shape and cutting style on the report: Round brilliant

Certificate IGI LG835667802

Diamond specifications and retailer prices

From £200 GBP
$268 USD
As of November 1, 2026
Save £851 GBP (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,051 GBP at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.2ct lab-grown round diamond

This 1.2ct 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 LG835667802 or 835667802. Listed at 17 retailers as of November 1, 2026, with prices from £200 to £1,051, a £851 spread on the same certified stone. Reve Diamonds lists it at £1,051. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835667802
Dimensions6.90 × 6.95 × 4.12 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
6.90 mm6.95 mm1.20 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835667802
Side View
Table 58.0%Crown 33.9°Girdle: MediumPavilion 40.3°Culet: NoneDepth 59.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £761 GBP|Low: £200 GBP|High: £1,051 GBP|Avg: £601 GBP
Retailer 1
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
Reve Diamonds
November 2, 2026
Retailer 12£200 GBP
Retailer 4£286 GBP
Retailer 6£350 GBP
Retailer 9£393 GBP
Retailer 8£412 GBP
Retailer 11£427 GBP
Retailer 2£434 GBP
Retailer 10£474 GBP
Retailer 14£526 GBP
Retailer 5£551 GBP
Retailer 1£761 GBP
Retailer 3£834 GBP
Retailer 7£924 GBP
Retailer 13£994 GBP
Retailer 15£1,002 GBP
Reve Diamonds£1,051 GBP

19 data points across 16 retailers

17 retailers£200 GBP to £1,051 GBP

A
Cheapest Retailer
-
£200 GBP
$268 USD
A
Retailer 2
-
£286 GBP
HK$3,000 HKD
View
A
Retailer 3
-
£350 GBP
$470 USD
View
A
Retailer 4
-
£393 GBP
View
A
Retailer 5
-
£412 GBP
€526 EUR
View
A
Retailer 6
-
£427 GBP
ZAR 9,255 ZAR
View
A
Retailer 7
-
£434 GBP
$582 USD
View
B+
Retailer 8
-
£474 GBP
View
B+
Retailer 9
-
£526 GBP
$706 USD
View
B+
Retailer 10
-
£551 GBP
$739 USD
View
Retailer 11
-
£761 GBP
$1,021 USD
View
B
Retailer 12
-
£834 GBP
$1,119 USD
View
B
Retailer 13
-
£850 GBP
$1,140 USD
View
B
Retailer 14
-
£924 GBP
$1,240 USD
View
B
Retailer 15
-
£994 GBP
View
B
Retailer 16
-
£1,002 GBP
$1,345 USD
View
Most Expensive
B
Reve Diamonds
533B7D3EB · Nov 1
£1,051 GBP
$1,410 USD
View
16 more retailers have this diamond
Prices start from £200 GBPSave up to £851 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
1.20ct Round
£200 GBP