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Radiant|Lab Grown|IGI

1.20ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG689562966

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG689562966

Diamond specifications and retailer prices

From £122 GBP
As of November 4, 2026
Save £1,107 GBP (90%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,230 GBP at Do Amore Diamonds · As of November 3, 2026
View at Do Amore Diamonds

About this 1.2ct lab-grown radiant diamond

This 1.2ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG689562966 or 689562966. Listed at 20 retailers as of November 3, 2026, with prices from £122 to £1,230, a £1,107 spread on the same certified stone. Do Amore Diamonds lists it at £1,230. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689562966
Dimensions7.69 × 5.18 × 3.56 mm
L/W Ratio1.48
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
7.69 mm5.18 mm1.20 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689562966
Side View
Table 65.0%Crown 41.6°Girdle: MED-STKPavilion 37.6°Culet: NoneDepth 68.7%

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 4
Current: £1,178 GBP|Low: £122 GBP|High: £1,267 GBP|Avg: £435 GBP|-4.2%
Do Amore Diamonds
Retailer 2
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Retailer 18
November 5, 2026
Retailer 13£122 GBP
Retailer 4£137 GBP
Retailer 16£142 GBP
Retailer 6£152 GBP
Retailer 10£159 GBP
Retailer 15£205 GBP
Retailer 18£259 GBP
Retailer 2£299 GBP
Retailer 8£303 GBP
Retailer 9£399 GBP
Retailer 7£427 GBP
Retailer 12£430 GBP
Retailer 3£430 GBP
Retailer 14£539 GBP
Retailer 17£585 GBP
Retailer 5£667 GBP
Retailer 11£782 GBP
Do Amore Diamonds£1,178 GBP

32 data points across 18 retailers

20 retailers£122 GBP to £1,230 GBP

A
Cheapest Retailer
-
£122 GBP
A
Retailer 2
-
£137 GBP
View
Final sale: no returns
A
Retailer 3
-
£142 GBP
View
A
Retailer 4
-
£152 GBP
View
Retailer 5
-
£159 GBP
View
Price last confirmed 11 days ago
B+
Retailer 6
-
£205 GBP
View
A
Retailer 7
-
£259 GBP
View
A
Retailer 8
-
£299 GBP
View
A
Retailer 9
-
£303 GBP
View
A
Retailer 10
-
£399 GBP
View
B+
Retailer 11
-
£427 GBP
View
B+
Retailer 12
-
£430 GBP
View
B+
Retailer 13
-
£430 GBP
View
B+
Retailer 14
-
£539 GBP
View
B+
Retailer 15
-
£585 GBP
View
B
Retailer 16
-
£667 GBP
View
B
Retailer 17
-
£782 GBP
View
B
Retailer 18
-
£1,010 GBP
View
B
Retailer 19
-
£1,178 GBP
View
Most Expensive
B
Do Amore Diamonds
23-689562966 · Nov 3
£1,230 GBP
$1,660 USD
View
19 more retailers have this diamond
Prices start from £122 GBPSave up to £1,107 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 Radiant
£122 GBP