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Radiant|Lab Grown|IGI

1.55ct F VVS1 Radiant Lab Grown Diamond

F/VVS1 • IGI LG756574991

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

Certificate IGI LG756574991

Diamond specifications and retailer prices

From $543 AUD
As of November 4, 2026
Save $2,786 AUD (84%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,328 AUD at Brilliant Earth · As of November 4, 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 F colour (colourless) and VVS1 clarity (very-very-slightly-included) and certified by IGI LG756574991 or 756574991. Listed at 6 retailers as of November 4, 2026, with prices from $543 to $3,328, a $2,786 spread on the same certified stone. Brilliant Earth lists it at $3,328. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
F
Colour
VVS1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG756574991
Dimensions8.21 × 5.84 × 3.76 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
8.21 mm5.84 mm1.55 ctF / VVS1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG756574991
Side View
Table 65.0%Crown 35.1°Girdle: STK-THKPavilion 34.5°Culet: NoneDepth 64.4%

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 4
Current: $3,328 AUD|Low: $543 AUD|High: $3,428 AUD|Avg: $1,300 AUD|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 6$543 AUD
Retailer 3$646 AUD
Retailer 7$911 AUD
Retailer 5$936 AUD
Retailer 2$1,468 AUD
Retailer 4$1,541 AUD
Brilliant Earth$3,328 AUD

13 data points across 7 retailers

6 retailers$543 AUD to $3,328 AUD

B+
Cheapest Retailer
-
$543 AUD
A
Retailer 2
-
$646 AUD
View
B+
Retailer 3
-
$936 AUD
View
B
Retailer 4
-
$1,468 AUD
View
Retailer 5
-
$1,541 AUD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
17826438A · Nov 4
$3,328 AUD
$2,330 USD
View
5 more retailers have this diamond
Prices start from $543 AUDSave up to $2,786 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
$543 AUD