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Round|Lab Grown|IGI

3.57ct I VS1 Round Lab Grown Diamond

VG • I/VS1 • IGI LG605341390

Shape and cutting style on the report: Round brilliant

Certificate IGI LG605341390

Diamond specifications and retailer prices

From £376 GBP
$504 USD
As of October 29, 2026
Save £1,554 GBP (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,930 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 3.57ct lab-grown round diamond

This 3.57ct lab-grown round sits in the three to five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG605341390 or 605341390. Listed at 11 retailers as of October 29, 2026, with prices from £376 to £1,930, a £1,554 spread on the same certified stone. MOH London lists it at £1,930. 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

3.57
Carat
I
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605341390
Dimensions9.69 × 9.64 × 6.11 mm
L/W Ratio1.01
Girdle conditionFaceted
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
9.69 mm9.64 mm3.57 ctI / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605341390
Side View
Table 58.0%Crown 37.8°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 63.2%

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 29
Current: £1,930 GBP|Low: £256 GBP|High: £1,942 GBP|Avg: £995 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 6£376 GBP
Retailer 3£522 GBP
Retailer 10£590 GBP
Retailer 5£653 GBP
Retailer 7£655 GBP
Retailer 2£998 GBP
Retailer 4£1,119 GBP
Retailer 8£1,568 GBP
Retailer 9£1,585 GBP
MOH London£1,930 GBP

23 data points across 10 retailers

11 retailers£376 GBP to £1,930 GBP

A
Cheapest Retailer
-
£376 GBP
$504 USD
Final sale: no returns
A
Retailer 2
-
£416 GBP
$558 USD
View
A
Retailer 3
-
£522 GBP
$700 USD
View
B+
Retailer 4
-
£653 GBP
$875 USD
View
B+
Retailer 5
-
£655 GBP
$878 USD
View
B+
Retailer 6
-
£998 GBP
ZAR 21,605 ZAR
View
B+
Retailer 7
-
£1,119 GBP
$1,500 USD
View
B
Retailer 8
-
£1,209 GBP
$1,620 USD
View
B
Retailer 9
-
£1,568 GBP
$2,101 USD
View
B
Retailer 10
-
£1,585 GBP
$2,124 USD
View
Most Expensive
B
MOH London
LG605341390 · Oct 29
£1,930 GBP
View
10 more retailers have this diamond
Prices start from £376 GBPSave up to £1,554 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
3.57ct Round
£376 GBP