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Round|Lab Grown|IGI

3.56ct I VS1 Round Lab Grown Diamond

VG • I/VS1 • IGI LG605341409

Shape and cutting style on the report: Round brilliant

Certificate IGI LG605341409

Diamond specifications and retailer prices

From £375 GBP
$503 USD
As of October 29, 2026
Save £1,549 GBP (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,924 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 3.56ct lab-grown round diamond

This 3.56ct 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 LG605341409 or 605341409. Listed at 12 retailers as of October 29, 2026, with prices from £375 to £1,924, a £1,549 spread on the same certified stone. MOH London lists it at £1,924. 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

3.56
Carat
I
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605341409
Dimensions9.66 × 9.63 × 6.04 mm
L/W Ratio1.00
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
9.66 mm9.63 mm3.56 ctI / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG605341409
Side View
Table 57.0%Crown 36.8°Girdle: ThickPavilion 40.2°Culet: NoneDepth 62.6%

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 29
Current: £1,924 GBP|Low: £257 GBP|High: £1,937 GBP|Avg: £1,059 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 9£375 GBP
Retailer 6£567 GBP
Retailer 4£588 GBP
Retailer 8£652 GBP
Retailer 10£654 GBP
Retailer 2£995 GBP
Retailer 5£1,117 GBP
Retailer 3£1,240 GBP
Retailer 7£1,467 GBP
Retailer 11£1,559 GBP
Retailer 12£1,581 GBP
MOH London£1,924 GBP

20 data points across 12 retailers

12 retailers£375 GBP to £1,924 GBP

A
Cheapest Retailer
-
£375 GBP
$503 USD
Final sale: no returns
Retailer 2
-
£416 GBP
$557 USD
View
Price last confirmed 28 days ago
A
Retailer 3
-
£567 GBP
$760 USD
View
B+
Retailer 4
-
£652 GBP
$873 USD
View
B+
Retailer 5
-
£654 GBP
$876 USD
View
B+
Retailer 6
-
£995 GBP
ZAR 21,548 ZAR
View
B
Retailer 7
-
£1,117 GBP
$1,496 USD
View
Retailer 8
-
£1,206 GBP
$1,616 USD
View
Price last confirmed 23 days ago
Retailer 9
-
£1,467 GBP
$1,965 USD
View
Price last confirmed 26 days ago
B
Retailer 10
-
£1,559 GBP
$2,089 USD
View
B
Retailer 11
-
£1,581 GBP
$2,119 USD
View
Most Expensive
B
MOH London
LG605341409 · Oct 29
£1,924 GBP
View
11 more retailers have this diamond
Prices start from £375 GBPSave up to £1,549 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
3.56ct Round
£375 GBP