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Round|Lab Grown|IGI

1.78ct G VVS1 Round Lab Grown Diamond

ID • G/VVS1 • IGI LG654436960

Shape and cutting style on the report: Round brilliant

Certificate IGI LG654436960

Diamond specifications and retailer prices

From $502 USD
As of October 30, 2026
Save $694 USD (58%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,196 USD at MOH London · As of October 26, 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 G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG654436960 or 654436960. Listed at 4 retailers as of October 26, 2026, with prices from $502 to $1,196, a $694 spread on the same certified stone. MOH London lists it at $1,196. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
G
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG654436960
Dimensions7.78 × 7.77 × 4.84 mm
L/W Ratio1.00
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.78 mm7.77 mm1.78 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG654436960
Side View
Table 54.0%Crown 34.6°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.3%

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 30
Current: $1,196 USD|Low: $477 USD|High: $1,209 USD|Avg: $680 USD|+0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 30, 2026
Retailer 3$502 USD
Retailer 5$525 USD
Retailer 2$563 USD
Retailer 4$707 USD
MOH London$1,196 USD

39 data points across 5 retailers

4 retailers$502 USD to $1,196 USD

B+
Cheapest Retailer
-
$502 USD
A
Retailer 2
-
$563 USD
£443 GBP
View
B+
Retailer 3
-
$707 USD
View
Most Expensive
B
MOH London
LG654436960 · Oct 26
$1,196 USD
£942 GBP
View
3 more retailers have this diamond
Prices start from $502 USDSave up to $694 USD

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
$502 USD