Round|Lab Grown|IGI

3.55ct I VS1 Round Lab Grown Diamond

EX • I/VS1 • IGI LG634412558

Shape and cutting style on the report: Round brilliant

Certificate IGI LG634412558

Diamond specifications and retailer prices

From £414 GBP
$555 USD
As of October 2, 2026
11 retailers carry this diamond
Most expensive: £1,919 GBP at MOH London · As of October 21, 2026
View at MOH London

About this 3.55ct lab-grown round diamond

This 3.55ct lab-grown round sits in the three to five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG634412558 or 634412558. Listed at 11 retailers as of October 2, 2026. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.55
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634412558
Dimensions9.75 × 9.67 × 5.99 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.75 mm9.67 mm3.55 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634412558
Side View
Table 57.0%Crown 34.6°Girdle: Slightly ThickPavilion 40.3°Culet: NoneDepth 61.7%

Caratlytics Score

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 2
Current: £1,919 GBP|Low: £522 GBP|High: £2,970 GBP|Avg: £1,165 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
Retailer 13
October 23, 2026
Retailer 9£563 GBP
Retailer 4£586 GBP
Retailer 10£619 GBP
Retailer 12£650 GBP
Retailer 13£652 GBP
Retailer 6£984 GBP
Retailer 5£1,017 GBP
Retailer 8£1,114 GBP
Retailer 7£1,433 GBP
Retailer 2£1,561 GBP
Retailer 3£1,578 GBP
MOH London£1,919 GBP
Retailer 11£2,970 GBP

23 data points across 13 retailers

11 retailers£414 GBP to £1,919 GBP

Retailer 1
-
£414 GBP
$555 USD
Price last confirmed 29 days ago
Retailer 2
-
£619 GBP
View
Price last confirmed 23 days ago
Retailer 3
-
£650 GBP
$871 USD
View
Price last confirmed 10 days ago
Retailer 4
-
£652 GBP
$874 USD
View
Price last confirmed 9 days ago
Retailer 5
-
£984 GBP
ZAR 21,294 ZAR
View
Price last confirmed 12 days ago
Retailer 6
-
£1,114 GBP
$1,492 USD
View
Price last confirmed 9 days ago
Retailer 7
-
£1,203 GBP
$1,612 USD
View
Price last confirmed 23 days ago
Retailer 8
-
£1,433 GBP
$1,920 USD
View
Price last confirmed 13 days ago
Retailer 9
-
£1,463 GBP
$1,960 USD
View
Price last confirmed 27 days ago
Retailer 10
-
£1,578 GBP
$2,114 USD
View
Price last confirmed 10 days ago
Most Expensive
MOH London
LG634412558 · Oct 21
£1,919 GBP
View
Price last confirmed 10 days ago
10 more retailers have this diamond

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.

3.55ct Round
£414 GBP