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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 $320 AUD
As of November 5, 2026
Save $1,491 AUD (82%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $1,886 AUD 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 24 retailers as of November 4, 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $1,886 AUD|Low: $317 AUD|High: $1,886 AUD|Avg: $909 AUD
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 5, 2026
Retailer 11$320 AUD
Retailer 15$356 AUD
Retailer 20$370 AUD
Retailer 6$396 AUD
Retailer 7$396 AUD
Retailer 13$616 AUD
Retailer 8$676 AUD
Retailer 4$679 AUD
Retailer 2$729 AUD
Retailer 16$747 AUD
Retailer 5$760 AUD
Retailer 3$824 AUD
Retailer 12$1,273 AUD
Retailer 14$1,277 AUD
Retailer 19$1,327 AUD
Retailer 10$1,347 AUD
Retailer 17$1,587 AUD
Retailer 18$1,611 AUD
Retailer 9$1,811 AUD
Brilliant Earth$1,886 AUD

32 data points across 20 retailers

24 retailers$320 AUD to $1,811 AUD

A
Cheapest Retailer
-
$320 AUD
A
Retailer 2
-
$356 AUD
View
Final sale: no returns
A
Retailer 3
-
$370 AUD
View
A
Retailer 4
-
$396 AUD
View
Retailer 5
-
$396 AUD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$616 AUD
View
A
Retailer 7
-
$676 AUD
View
A
Retailer 8
-
$679 AUD
View
A
Retailer 9
-
$729 AUD
View
A
Retailer 10
-
$747 AUD
View
A
Retailer 11
-
$760 AUD
View
B+
Retailer 12
-
$824 AUD
View
B+
Retailer 13
-
$1,096 AUD
View
Retailer 14
-
$1,140 AUD
View
Price last confirmed 94 days ago
Retailer 15
-
$1,261 AUD
View
Price last confirmed 45 days ago
B
Retailer 16
-
$1,273 AUD
View
B
Retailer 17
-
$1,277 AUD
View
Retailer 18
-
$1,327 AUD
View
Price last confirmed 7 days ago
B
Retailer 19
-
$1,347 AUD
View
B
Retailer 20
-
$1,490 AUD
View
B
Retailer 21
-
$1,587 AUD
View
B
Retailer 22
-
$1,611 AUD
View
B
Retailer 23
-
$1,811 AUD
View
Most Expensive
Brilliant Earth
20258678A · Oct 16
$1,886 AUD
$1,320 USD
View
Price last confirmed 20 days ago
23 more retailers have this diamond
Prices start from $320 AUDSave up to $1,491 AUD

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
$320 AUD