Radiant|Lab Grown|IGI

1.25ct E VS1 Radiant Lab Grown Diamond

EX • E/VS1 • IGI LG817603939

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

Certificate IGI LG817603939

Diamond specifications and retailer prices

From £143 GBP
$192 USD
As of October 30, 2026
Save £729 GBP (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £872 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

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 E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG817603939 or 817603939. Listed at 21 retailers as of October 30, 2026, with prices from £143 to £872, a £729 spread on the same certified stone. Reve Diamonds lists it at £872. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817603939
Dimensions7.97 × 5.20 × 3.41 mm
L/W Ratio1.53
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.97 mm5.20 mm1.25 ctE / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817603939
Side View
Table 64.0%Crown 37.3°Girdle: MediumPavilion 33.5°Culet: NoneDepth 65.6%

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: Oct 30
Current: £299 GBP|Low: £113 GBP|High: £842 GBP|Avg: £366 GBP|+2.1%
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
Retailer 16
October 31, 2026
Retailer 16£143 GBP
Retailer 14£160 GBP
Retailer 5£166 GBP
Retailer 3£178 GBP
Retailer 6£178 GBP
Retailer 8£240 GBP
Retailer 1£299 GBP
Retailer 12£305 GBP
Retailer 9£321 GBP
Retailer 7£363 GBP
Retailer 10£427 GBP
Retailer 2£481 GBP
Retailer 11£552 GBP
Retailer 4£572 GBP
Retailer 15£694 GBP
Retailer 13£833 GBP

45 data points across 16 retailers

21 retailers£143 GBP to £872 GBP

A
Cheapest Retailer
-
£143 GBP
$192 USD
A
Retailer 2
-
£160 GBP
$214 USD
View
Final sale: no returns
A
Retailer 3
-
£166 GBP
$223 USD
View
A
Retailer 4
-
£178 GBP
$238 USD
View
A
Retailer 5
-
£178 GBP
$238 USD
View
B+
Retailer 6
-
£240 GBP
$322 USD
View
A
Retailer 7
-
£299 GBP
€382 EUR
View
A
Retailer 8
-
£305 GBP
ZAR 6,612 ZAR
View
A
Retailer 9
-
£321 GBP
View
B+
Retailer 10
-
£343 GBP
$459 USD
View
B+
Retailer 11
-
£363 GBP
$486 USD
View
B+
Retailer 12
-
£427 GBP
$572 USD
View
B+
Retailer 13
-
£457 GBP
$612 USD
View
Retailer 14
-
£481 GBP
$645 USD
View
Price last confirmed 10 days ago
B+
Retailer 15
-
£552 GBP
$740 USD
View
B
Retailer 16
-
£572 GBP
$766 USD
View
B
Retailer 17
-
£582 GBP
SGD 1,053 SGD
View
B
Retailer 18
-
£612 GBP
$820 USD
View
B
Retailer 19
-
£694 GBP
View
B
Retailer 20
-
£833 GBP
View
Most Expensive
B
Reve Diamonds
767B27915 · Oct 30
£872 GBP
$1,169 USD
View
20 more retailers have this diamond
Prices start from £143 GBPSave up to £729 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
£143 GBP