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Round|Lab Grown|IGI

1.55ct F VS2 Round Lab Grown Diamond

ID • F/VS2 • IGI LG778647140

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778647140

Diamond specifications and retailer prices

From $224 USD
As of November 1, 2026
Save $1,045 USD (82%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $1,320 USD at Brilliant Earth · As of October 16, 2026
View at Brilliant Earth

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 F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778647140 or 778647140. Listed at 23 retailers as of November 1, 2026, with a 466% 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

1.55
Carat
F
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778647140
Dimensions7.48 × 7.51 × 4.50 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
7.48 mm7.51 mm1.55 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778647140
Side View
Table 58.0%Crown 32.9°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.1%

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 1
Current: $1,320 USD|Low: $222 USD|High: $1,320 USD|Avg: $654 USD
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 2, 2026
Retailer 11$224 USD
Retailer 15$254 USD
Retailer 19$259 USD
Retailer 5$277 USD
Retailer 6$277 USD
Retailer 13$432 USD
Retailer 7$473 USD
Retailer 3$475 USD
Retailer 14$515 USD
Retailer 2$524 USD
Retailer 4$532 USD
Retailer 20$577 USD
Retailer 9$759 USD
Retailer 12$891 USD
Retailer 18$930 USD
Retailer 10$944 USD
Retailer 16$1,111 USD
Retailer 17$1,128 USD
Retailer 8$1,269 USD
Brilliant Earth$1,320 USD

31 data points across 20 retailers

23 retailers$224 USD to $1,269 USD

A
Cheapest Retailer
-
$224 USD
A
Retailer 2
-
$254 USD
View
Final sale: no returns
A
Retailer 3
-
$259 USD
View
A
Retailer 4
-
$277 USD
View
Retailer 5
-
$277 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$432 USD
£340 GBP
View
A
Retailer 7
-
$473 USD
View
A
Retailer 8
-
$475 USD
View
A
Retailer 9
-
$515 USD
£406 GBP
View
A
Retailer 10
-
$524 USD
€499 EUR
View
A
Retailer 11
-
$532 USD
View
B+
Retailer 12
-
$577 USD
A$888 AUD
View
B
Retailer 13
-
$759 USD
View
Retailer 14
-
$799 USD
View
Price last confirmed 91 days ago
Retailer 15
-
$883 USD
View
Price last confirmed 42 days ago
B
Retailer 16
-
$891 USD
View
B+
Retailer 17
-
$930 USD
A$1,430 AUD
View
B
Retailer 18
-
$944 USD
View
B
Retailer 19
-
$1,043 USD
View
B
Retailer 20
-
$1,111 USD
£875 GBP
View
B
Retailer 21
-
$1,128 USD
View
B
Retailer 22
-
$1,269 USD
View
Most Expensive
Brilliant Earth
20258678A · Oct 16
$1,320 USD
View
Price last confirmed 16 days ago
22 more retailers have this diamond
Prices start from $224 USDSave up to $1,045 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
$224 USD