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Round|Lab Grown|IGI

1.40ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG776638670

Shape and cutting style on the report: Round brilliant

Certificate IGI LG776638670

Diamond specifications and retailer prices

From £135 GBP
$180 USD
As of October 29, 2026
Save £404 GBP (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £573 GBP at Friendly Diamonds · As of October 21, 2026
View at Friendly Diamonds

About this 1.4ct lab-grown round diamond

This 1.4ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG776638670 or 776638670. Listed at 13 retailers as of October 27, 2026, with a 299% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776638670
Dimensions7.09 × 7.17 × 4.45 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
7.09 mm7.17 mm1.40 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776638670
Side View
Table 58.0%Crown 35.6°Girdle: MediumPavilion 41.2°Culet: NoneDepth 62.3%

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: £573 GBP|Low: £113 GBP|High: £573 GBP|Avg: £311 GBP|+9.9%
Friendly Diamonds
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 2£135 GBP
Retailer 12£152 GBP
Retailer 8£157 GBP
Retailer 7£167 GBP
Retailer 4£178 GBP
Retailer 3£229 GBP
Retailer 5£288 GBP
Retailer 10£387 GBP
Retailer 9£410 GBP
Retailer 11£415 GBP
Retailer 6£539 GBP
Friendly Diamonds£573 GBP

24 data points across 12 retailers

13 retailers£135 GBP to £539 GBP

A
Cheapest Retailer
-
£135 GBP
$180 USD
A
Retailer 2
-
£152 GBP
$202 USD
View
Final sale: no returns
A
Retailer 3
-
£157 GBP
$209 USD
View
A
Retailer 4
-
£167 GBP
$223 USD
View
Retailer 5
-
£178 GBP
$237 USD
View
Price last confirmed 13 days ago
Retailer 6
-
£178 GBP
$237 USD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
£229 GBP
$305 USD
View
A
Retailer 8
-
£288 GBP
ZAR 6,199 ZAR
View
A
Retailer 9
-
£387 GBP
$516 USD
View
A
Retailer 10
-
£410 GBP
A$839 AUD
View
A
Retailer 11
-
£415 GBP
$553 USD
View
A
Retailer 12
-
£539 GBP
$718 USD
View
Most Expensive
Friendly Diamonds
4417889 · Oct 21
£573 GBP
$763 USD
View
Price last confirmed 8 days ago
12 more retailers have this diamond
Prices start from £135 GBPSave up to £404 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
1.40ct Round
£135 GBP