Round|Lab Grown|IGI

3.74ct H VS1 Round Lab Grown Diamond

VG • H/VS1 • IGI LG766649778

Shape and cutting style on the report: Round brilliant

Certificate IGI LG766649778

Diamond specifications and retailer prices

From £360 GBP
$480 USD
As of October 26, 2026
Save £3,327 GBP (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,687 GBP at Brilliant Earth · As of October 14, 2026
View at Brilliant Earth

About this 3.74ct lab-grown round diamond

This 3.74ct lab-grown round sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG766649778 or 766649778. Listed at 19 retailers as of October 26, 2026, with a 923% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.74
Carat
H
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle34.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766649778
Dimensions9.91 × 9.81 × 5.98 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
9.91 mm9.81 mm3.74 ctH / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG766649778
Side View
Table 63.0%Crown 34.5°Girdle: THK-VTKPavilion 40.7°Culet: NoneDepth 60.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: £3,687 GBP|Low: £384 GBP|High: £3,792 GBP|Avg: £1,135 GBP|-2.8%
Brilliant Earth
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 29, 2026
Retailer 5£402 GBP
Retailer 12£403 GBP
Retailer 6£552 GBP
Retailer 11£599 GBP
Retailer 2£670 GBP
Retailer 3£746 GBP
Retailer 13£885 GBP
Retailer 8£961 GBP
Retailer 9£977 GBP
Retailer 10£1,539 GBP
Retailer 4£1,566 GBP
Retailer 7£1,643 GBP
Brilliant Earth£3,687 GBP

34 data points across 13 retailers

19 retailers£360 GBP to £3,687 GBP

A
Cheapest Retailer
-
£360 GBP
$480 USD
B+
Retailer 2
-
£402 GBP
$536 USD
View
Final sale: no returns
B+
Retailer 3
-
£403 GBP
$537 USD
View
B+
Retailer 4
-
£447 GBP
$595 USD
View
B+
Retailer 5
-
£552 GBP
$735 USD
View
B+
Retailer 6
-
£599 GBP
$798 USD
View
B+
Retailer 7
-
£670 GBP
€850 EUR
View
B+
Retailer 8
-
£746 GBP
$993 USD
View
B+
Retailer 9
-
£885 GBP
$1,179 USD
View
B+
Retailer 10
-
£961 GBP
ZAR 20,673 ZAR
View
Retailer 11
-
£977 GBP
$1,301 USD
View
Price last confirmed 8 days ago
B
Retailer 12
-
£1,014 GBP
$1,350 USD
View
B
Retailer 13
-
£1,436 GBP
$1,912 USD
View
Retailer 14
-
£1,539 GBP
$2,050 USD
View
Price last confirmed 9 days ago
Retailer 15
-
£1,554 GBP
$2,070 USD
View
Price last confirmed 22 days ago
B
Retailer 16
-
£1,566 GBP
$2,086 USD
View
B
Retailer 17
-
£1,643 GBP
View
C
Retailer 18
-
£3,687 GBP
$4,910 USD
View
Most Expensive
Brilliant Earth
18207618A · Oct 14
£3,687 GBP
$4,910 USD
View
Price last confirmed 16 days ago
18 more retailers have this diamond
Prices start from £360 GBPSave up to £3,327 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
3.74ct Round
£360 GBP