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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 $803 NZD
As of November 6, 2026
Save $3,400 NZD (81%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,203 NZD at Brilliant Earth · As of November 6, 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 6, 2026, with prices from $803 to $4,203, a $3,400 spread on the same certified stone. Brilliant Earth lists it at $4,203. 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 →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,203 NZD|Low: $685 NZD|High: $4,329 NZD|Avg: $1,648 NZD|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 4$803 NZD
Retailer 3$938 NZD
Retailer 7$1,151 NZD
Retailer 2$1,210 NZD
Retailer 5$1,854 NZD
Retailer 6$1,946 NZD
Brilliant Earth$4,203 NZD

14 data points across 7 retailers

6 retailers$803 NZD to $4,203 NZD

B+
Cheapest Retailer
-
$803 NZD
B+
Retailer 2
-
$938 NZD
View
B+
Retailer 3
-
$1,210 NZD
View
B
Retailer 4
-
$1,854 NZD
View
Retailer 5
-
$1,946 NZD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
17826438A · Nov 6
$4,203 NZD
$2,330 USD
View
5 more retailers have this diamond
Prices start from $803 NZDSave up to $3,400 NZD

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.

B+
1.55ct Radiant
$803 NZD