Radiant|Lab Grown|IGI

1.25ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG813669256

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

Certificate IGI LG813669256

Diamond specifications and retailer prices

From £200 GBP
$267 USD
As of October 28, 2026
Save £743 GBP (79%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £943 GBP at Michael Trio · As of October 29, 2026
View at Michael Trio

About this 1.25ct lab-grown radiant diamond

This 1.25ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG813669256 or 813669256. Listed at 8 retailers as of October 28, 2026, with prices from £200 to £943, a £743 spread on the same certified stone. Michael Trio lists it at £943. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.2°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813669256
Dimensions7.66 × 5.29 × 3.60 mm
L/W Ratio1.45
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.66 mm5.29 mm1.25 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813669256
Side View
Table 65.0%Crown 44.2°Girdle: MediumPavilion 35.2°Culet: NoneDepth 68.1%

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 28
Current: £943 GBP|Low: £200 GBP|High: £943 GBP|Avg: £489 GBP
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 5£200 GBP
Retailer 10£270 GBP
Retailer 6£301 GBP
Retailer 8£314 GBP
Retailer 7£327 GBP
Retailer 3£548 GBP
Retailer 2£591 GBP
Retailer 9£621 GBP
Retailer 4£841 GBP
Michael Trio£943 GBP

12 data points across 10 retailers

8 retailers£200 GBP to £943 GBP

A
Cheapest Retailer
-
£200 GBP
$267 USD
Final sale: no returns
A
Retailer 2
-
£301 GBP
$401 USD
View
A
Retailer 3
-
£327 GBP
HK$3,400 HKD
View
B+
Retailer 4
-
£548 GBP
$730 USD
View
Price last confirmed 10 days ago
B+
Retailer 5
-
£566 GBP
$754 USD
View
Price last confirmed 80 days ago
B+
Retailer 6
-
£591 GBP
A$1,210 AUD
View
B
Retailer 7
-
£841 GBP
$1,120 USD
View
Most Expensive
B
Michael Trio
1744182748 · Oct 29
£943 GBP
SGD 1,697 SGD
View
7 more retailers have this diamond
Prices start from £200 GBPSave up to £743 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
1.25ct Radiant
£200 GBP