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Radiant|Lab Grown|IGI

1.55ct G VS1 Radiant Lab Grown Diamond

EX • G/VS1 • IGI LG781636342

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG781636342

Diamond specifications and retailer prices

From $304 AUD
As of November 4, 2026
Save $1,630 AUD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,933 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.55ct lab-grown radiant diamond

This 1.55ct lab-grown radiant 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 LG781636342 or 781636342. Listed at 19 retailers as of November 2, 2026, with prices from $304 to $1,933, a $1,630 spread on the same certified stone. Brilliant Earth lists it at $1,933. 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
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781636342
Dimensions8.34 × 5.90 × 3.70 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.34 mm5.90 mm1.55 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781636342
Side View
Table 64.0%Crown 38.9°Girdle: MediumPavilion 33.5°Culet: NoneDepth 62.7%

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 4
Current: $1,933 AUD|Low: $295 AUD|High: $2,091 AUD|Avg: $891 AUD|-7.5%
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
November 4, 2026
Retailer 4$304 AUD
Retailer 3$339 AUD
Retailer 16$352 AUD
Retailer 7$377 AUD
Retailer 10$378 AUD
Retailer 5$646 AUD
Retailer 15$649 AUD
Retailer 2$687 AUD
Retailer 8$715 AUD
Retailer 19$851 AUD
Retailer 14$875 AUD
Retailer 13$992 AUD
Retailer 17$1,209 AUD
Retailer 9$1,223 AUD
Retailer 11$1,239 AUD
Retailer 6$1,284 AUD
Retailer 12$1,505 AUD
Retailer 18$1,531 AUD
Brilliant Earth$1,933 AUD

32 data points across 19 retailers

19 retailers$304 AUD to $1,933 AUD

A
Cheapest Retailer
-
$304 AUD
A
Retailer 2
-
$339 AUD
View
Final sale: no returns
A
Retailer 3
-
$352 AUD
View
A
Retailer 4
-
$377 AUD
View
Retailer 5
-
$378 AUD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
$646 AUD
View
A
Retailer 7
-
$649 AUD
View
A
Retailer 8
-
$687 AUD
View
A
Retailer 9
-
$715 AUD
View
A
Retailer 10
-
$851 AUD
View
A
Retailer 11
-
$875 AUD
View
B+
Retailer 12
-
$992 AUD
View
B+
Retailer 13
-
$1,209 AUD
View
B+
Retailer 14
-
$1,223 AUD
View
B+
Retailer 15
-
$1,239 AUD
View
B+
Retailer 16
-
$1,284 AUD
View
B+
Retailer 17
-
$1,505 AUD
View
B+
Retailer 18
-
$1,531 AUD
View
Most Expensive
B
Brilliant Earth
21502017A · Nov 2
$1,933 AUD
$1,350 USD
View
18 more retailers have this diamond
Prices start from $304 AUDSave up to $1,630 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 Radiant
$304 AUD