Radiant|Lab Grown|IGI

1.55ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG494160350

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

Certificate IGI LG494160350

Diamond specifications and retailer prices

From £1,239 GBP
$1,660 USD
As of October 31, 2026
Save £1,428 GBP (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,044 GBP at Aida Diamonds · As of November 1, 2026
View at Aida Diamonds

About this 1.55ct lab-grown radiant diamond

This 1.55ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG494160350 or 494160350. Listed at 16 retailers as of October 31, 2026, with a 115% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.3°
Pavilion angle31.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494160350
Dimensions7.73 × 5.75 × 3.97 mm
L/W Ratio1.34
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.73 mm5.75 mm1.55 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494160350
Side View
Table 65.0%Crown 44.3°Girdle: MediumPavilion 31.3°Culet: NoneDepth 69.0%

Caratlytics Score

How it works →
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 31
Current: £4,044 GBP|Low: £1,119 GBP|High: £4,700 GBP|Avg: £2,529 GBP|-0.1%
Aida Diamonds
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
Retailer 17
November 1, 2026
Retailer 12£1,239 GBP
Retailer 14£1,400 GBP
Retailer 3£1,523 GBP
Retailer 5£1,567 GBP
Retailer 4£1,624 GBP
Retailer 15£1,624 GBP
Retailer 7£1,750 GBP
Retailer 9£2,081 GBP
Retailer 10£2,319 GBP
Retailer 16£2,546 GBP
Retailer 13£2,667 GBP
Retailer 11£2,986 GBP
Retailer 17£3,044 GBP
Retailer 6£3,367 GBP
Aida Diamonds£4,044 GBP
Retailer 8£4,411 GBP
Retailer 2£4,639 GBP

40 data points across 17 retailers

16 retailers£1,239 GBP to £2,667 GBP

B+
Cheapest Retailer
-
£1,239 GBP
$1,660 USD
B
Retailer 2
-
£1,400 GBP
$1,876 USD
View
B
Retailer 3
-
£1,523 GBP
$2,041 USD
View
B
Retailer 4
-
£1,567 GBP
$2,100 USD
View
Final sale: no returns
Retailer 5
-
£1,624 GBP
$2,176 USD
View
Price last confirmed 21 days ago
B
Retailer 6
-
£1,624 GBP
$2,176 USD
View
B
Retailer 7
-
£1,750 GBP
$2,345 USD
View
B
Retailer 8
-
£2,319 GBP
View
B
Retailer 9
-
£2,546 GBP
$3,411 USD
View
B
Retailer 10
-
£2,667 GBP
$3,573 USD
View
Retailer 11
-
£2,986 GBP
ZAR 64,632 ZAR
View
Price under review
Retailer 12
-
£3,044 GBP
$4,079 USD
View
Price under review
Retailer 13
-
£3,367 GBP
View
Price under review
Most Expensive
Aida Diamonds
497241412 · Nov 1
£4,044 GBP
A$8,336 AUD
View
Price under review
13 more retailers have this diamond
Prices start from £1,239 GBPSave up to £1,428 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+
1.55ct Radiant
£1,239 GBP