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Round|Lab Grown|IGI

1.78ct J VVS2 Round Lab Grown Diamond

EX • J/VVS2 • IGI LG407950745

Shape and cutting style on the report: Round brilliant

Certificate IGI LG407950745

Diamond specifications and retailer prices

From £1,036 GBP
$1,380 USD
As of October 29, 2026
Save £3,133 GBP (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £4,169 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.78ct lab-grown round diamond

This 1.78ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG407950745 or 407950745. Listed at 12 retailers as of October 29, 2026, with prices from £1,036 to £4,169, a £3,133 spread on the same certified stone. MOH London lists it at £4,169. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
J
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407950745
Dimensions7.74 × 7.69 × 4.75 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
7.74 mm7.69 mm1.78 ctJ / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG407950745
Side View
Table 60.0%Crown 36.2°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.6%

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: £4,169 GBP|Low: £1,036 GBP|High: £4,203 GBP|Avg: £2,173 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 5£1,036 GBP
Retailer 8£1,362 GBP
Retailer 9£1,401 GBP
Retailer 3£1,457 GBP
Retailer 10£1,581 GBP
Retailer 4£1,594 GBP
Retailer 11£1,949 GBP
Retailer 7£2,282 GBP
Retailer 6£2,504 GBP
Retailer 2£2,670 GBP
Retailer 12£4,157 GBP
MOH London£4,169 GBP

20 data points across 12 retailers

12 retailers£1,036 GBP to £4,169 GBP

A
Cheapest Retailer
-
£1,036 GBP
$1,380 USD
B+
Retailer 2
-
£1,252 GBP
$1,667 USD
View
B+
Retailer 3
-
£1,362 GBP
$1,814 USD
View
B+
Retailer 4
-
£1,401 GBP
$1,866 USD
View
Final sale: no returns
Retailer 5
-
£1,452 GBP
$1,934 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
£1,452 GBP
$1,934 USD
View
B+
Retailer 7
-
£1,581 GBP
$2,105 USD
View
B
Retailer 8
-
£2,282 GBP
$3,039 USD
View
B
Retailer 9
-
£2,504 GBP
$3,334 USD
View
B
Retailer 10
-
£2,670 GBP
ZAR 57,435 ZAR
View
B
Retailer 11
-
£2,722 GBP
$3,625 USD
View
Most Expensive
B
MOH London
LG407950745 · Oct 29
£4,169 GBP
View
11 more retailers have this diamond
Prices start from £1,036 GBPSave up to £3,133 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
1.78ct Round
£1,036 GBP