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Round|Lab Grown|IGI

1.55ct G VS1 Round Lab Grown Diamond

EX • G/VS1 • IGI LG778658641

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778658641

Diamond specifications and retailer prices

From $197 USD
As of November 3, 2026
Save $942 USD (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,139 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778658641 or 778658641. Listed at 22 retailers as of November 1, 2026, with prices from $197 to $1,139, a $942 spread on the same certified stone. MOH London lists it at $1,139. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778658641
Dimensions7.36 × 7.39 × 4.68 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.36 mm7.39 mm1.55 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778658641
Side View
Table 56.0%Crown 34.5°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 63.5%

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: Nov 3
Current: $1,139 USD|Low: $197 USD|High: $1,177 USD|Avg: $563 USD|-3.2%
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
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Retailer 18
November 4, 2026
Retailer 5$197 USD
Retailer 18$220 USD
Retailer 17$228 USD
Retailer 14$244 USD
Retailer 6$245 USD
Retailer 13$420 USD
Retailer 3$424 USD
Retailer 2$439 USD
Retailer 7$473 USD
Retailer 12$568 USD
Retailer 16$577 USD
Retailer 11$636 USD
Retailer 15$783 USD
Retailer 8$796 USD
Retailer 4$836 USD
Retailer 10$960 USD
Retailer 9$1,019 USD
MOH London$1,139 USD

31 data points across 18 retailers

22 retailers$197 USD to $1,139 USD

A
Cheapest Retailer
-
$197 USD
Retailer 2
-
$197 USD
View
Price last confirmed 47 days ago
A
Retailer 3
-
$220 USD
View
Final sale: no returns
A
Retailer 4
-
$228 USD
View
Retailer 5
-
$241 USD
View
Price last confirmed 46 days ago
A
Retailer 6
-
$244 USD
View
Retailer 7
-
$245 USD
View
Price last confirmed 10 days ago
A
Retailer 8
-
$420 USD
View
B+
Retailer 9
-
$424 USD
View
A
Retailer 10
-
$439 USD
View
A
Retailer 11
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$473 USD
View
A
Retailer 12
-
$568 USD
View
A
Retailer 13
-
$577 USD
View
B+
Retailer 14
-
$636 USD
View
B+
Retailer 15
-
$783 USD
View
Retailer 16
-
$783 USD
View
Price last confirmed 44 days ago
Retailer 17
-
$795 USD
View
Price last confirmed 31 days ago
B+
Retailer 18
-
$796 USD
View
B+
Retailer 19
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$836 USD
View
B
Retailer 20
-
$960 USD
View
B
Retailer 21
-
$1,019 USD
View
Most Expensive
B
MOH London
LG778658641 · Nov 1
$1,139 USD
£897 GBP
View
21 more retailers have this diamond
Prices start from $197 USDSave up to $942 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
1.55ct Round
$197 USD