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Radiant|Lab Grown|IGI

1.21ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG726574132

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

Certificate IGI LG726574132

Diamond specifications and retailer prices

From £208 GBP
$279 USD
As of October 30, 2026
Save £978 GBP (82%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,187 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.21ct lab-grown radiant diamond

This 1.21ct 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 LG726574132 or 726574132. Listed at 9 retailers as of October 30, 2026, with prices from £208 to £1,187, a £978 spread on the same certified stone. Do Amore Diamonds lists it at £1,187. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.2°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG726574132
Dimensions7.91 × 5.22 × 3.44 mm
L/W Ratio1.52
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.91 mm5.22 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG726574132
Side View
Table 65.0%Crown 40.2°Girdle: MediumPavilion 34.2°Culet: NoneDepth 65.9%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,187 GBP|Low: £137 GBP|High: £1,187 GBP|Avg: £501 GBP|+0.6%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 7£137 GBP
Retailer 5£208 GBP
Retailer 9£272 GBP
Retailer 10£349 GBP
Retailer 6£396 GBP
Retailer 3£414 GBP
Retailer 4£522 GBP
Retailer 8£792 GBP
Retailer 2£797 GBP
Do Amore Diamonds£1,187 GBP

21 data points across 10 retailers

9 retailers£208 GBP to £1,187 GBP

Retailer 1
-
£124 GBP
$166 USD
Price last confirmed 23 days ago
Retailer 2
-
£144 GBP
$193 USD
View
Price last confirmed 34 days ago
B+
Retailer 3
-
£208 GBP
$279 USD
View
B+
Retailer 4
-
£396 GBP
$530 USD
View
B+
Retailer 5
-
£414 GBP
A$853 AUD
View
B+
Retailer 6
-
£522 GBP
$699 USD
View
Retailer 7
-
£546 GBP
$731 USD
View
Price last confirmed 31 days ago
B
Retailer 8
-
£797 GBP
View
Most Expensive
B
Do Amore Diamonds
27-6F1A14617 · Oct 31
£1,187 GBP
$1,590 USD
View
8 more retailers have this diamond
Prices start from £208 GBPSave up to £978 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.

B+
1.21ct Radiant
£208 GBP