Radiant|Lab Grown|IGI

1.05ct D VS1 Radiant Lab Grown Diamond

VG • D/VS1 • IGI LG752574940

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

Certificate IGI LG752574940

Diamond specifications and retailer prices

From £128 GBP
$171 USD
As of October 30, 2026
Save £693 GBP (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £836 GBP at Brilliant Earth · As of October 21, 2026
View at Brilliant Earth

About this 1.05ct lab-grown radiant diamond

This 1.05ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG752574940 or 752574940. Listed at 20 retailers as of October 30, 2026, with a 543% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.05
Carat
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.4°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG752574940
Dimensions7.29 × 5.00 × 3.42 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.29 mm5.00 mm1.05 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG752574940
Side View
Table 65.0%Crown 40.4°Girdle: MediumPavilion 35.7°Culet: NoneDepth 68.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £836 GBP|Low: £128 GBP|High: £836 GBP|Avg: £368 GBP
Brilliant Earth
Retailer 2
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Retailer 20
October 30, 2026
Retailer 16£128 GBP
Retailer 7£142 GBP
Retailer 3£148 GBP
Retailer 18£158 GBP
Retailer 20£158 GBP
Retailer 2£212 GBP
Retailer 11£269 GBP
Retailer 15£271 GBP
Retailer 13£281 GBP
Retailer 9£283 GBP
Retailer 6£292 GBP
Retailer 17£385 GBP
Retailer 10£395 GBP
Retailer 5£437 GBP
Retailer 19£508 GBP
Retailer 4£537 GBP
Retailer 12£549 GBP
Retailer 14£742 GBP
Retailer 8£821 GBP
Brilliant Earth£836 GBP

37 data points across 20 retailers

20 retailers£128 GBP to £821 GBP

A
Cheapest Retailer
-
£128 GBP
$171 USD
A
Retailer 2
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£142 GBP
$190 USD
View
Final sale: no returns
A
Retailer 3
-
£148 GBP
$198 USD
View
A
Retailer 4
-
£158 GBP
$212 USD
View
A
Retailer 5
-
£158 GBP
$212 USD
View
A
Retailer 6
-
£212 GBP
View
A
Retailer 7
-
£269 GBP
$361 USD
View
A
Retailer 8
-
£271 GBP
ZAR 5,872 ZAR
View
A
Retailer 9
-
£281 GBP
View
A
Retailer 10
-
£283 GBP
$379 USD
View
Retailer 11
-
£292 GBP
€372 EUR
View
Price last confirmed 7 days ago
B+
Retailer 12
-
£385 GBP
A$793 AUD
View
B+
Retailer 13
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£395 GBP
$529 USD
View
Retailer 14
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£437 GBP
$585 USD
View
Price last confirmed 10 days ago
B
Retailer 15
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£508 GBP
$680 USD
View
B
Retailer 16
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£537 GBP
$719 USD
View
B
Retailer 17
-
£549 GBP
$735 USD
View
B
Retailer 18
-
£742 GBP
View
B
Retailer 19
-
£821 GBP
$1,100 USD
View
Most Expensive
Brilliant Earth
16997794A · Oct 21
£836 GBP
$1,120 USD
View
Price last confirmed 10 days ago
19 more retailers have this diamond
Prices start from £128 GBPSave up to £693 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
1.05ct Radiant
£128 GBP