CaratHunter
Plans
Round|Lab Grown|IGI

3.73ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG624400536

Shape and cutting style on the report: Round brilliant

Certificate IGI LG624400536

Diamond specifications and retailer prices

From £357 GBP
$478 USD
As of October 29, 2026
Save £1,278 GBP (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,635 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 3.73ct lab-grown round diamond

This 3.73ct lab-grown round sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG624400536 or 624400536. Listed at 11 retailers as of October 29, 2026, with prices from £357 to £1,635, a £1,278 spread on the same certified stone. MOH London lists it at £1,635. 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

3.73
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG624400536
Dimensions9.93 × 9.98 × 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
9.93 mm9.98 mm3.73 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG624400536
Side View
Table 58.0%Crown 34.6°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.3%

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: £1,635 GBP|Low: £357 GBP|High: £2,037 GBP|Avg: £1,097 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
Retailer 14
Retailer 15
October 29, 2026
Retailer 11£357 GBP
Retailer 13£400 GBP
Retailer 14£564 GBP
Retailer 8£647 GBP
Retailer 12£691 GBP
Retailer 9£694 GBP
Retailer 6£914 GBP
Retailer 2£935 GBP
Retailer 5£1,081 GBP
Retailer 10£1,190 GBP
Retailer 3£1,230 GBP
Retailer 15£1,619 GBP
MOH London£1,635 GBP
Retailer 4£1,792 GBP
Retailer 7£2,037 GBP

22 data points across 15 retailers

11 retailers£357 GBP to £1,635 GBP

A
Cheapest Retailer
-
£357 GBP
$478 USD
A
Retailer 2
-
£400 GBP
$536 USD
View
Final sale: no returns
A
Retailer 3
-
£400 GBP
$536 USD
View
A
Retailer 4
-
£564 GBP
HK$5,900 HKD
View
A
Retailer 5
-
£647 GBP
€826 EUR
View
B+
Retailer 6
-
£691 GBP
$926 USD
View
A
Retailer 7
-
£694 GBP
$930 USD
View
A
Retailer 8
-
£935 GBP
A$1,928 AUD
View
B+
Retailer 9
-
£1,190 GBP
$1,595 USD
View
B+
Retailer 10
-
£1,423 GBP
$1,907 USD
View
Most Expensive
B
MOH London
LG624400536 · Oct 29
£1,635 GBP
View
10 more retailers have this diamond
Prices start from £357 GBPSave up to £1,278 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
3.73ct Round
£357 GBP