CaratHunter
Plans
Radiant|Lab Grown|IGI

1.50ct F SI1 Radiant Lab Grown Diamond

GD • F/SI1

Diamond specifications and retailer prices

From $728 AUD
As of November 6, 2026
Save $1,656 AUD (69%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $2,384 AUD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.5ct lab-grown radiant diamond

This 1.5ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI. Listed at 2 retailers as of November 6, 2026, with prices from $728 to $2,384, a $1,656 spread on the same certified stone. Helzberg Diamonds lists it at $2,384. 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

1.50
Carat
F
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions8.09 × 5.53 × 3.88 mm
L/W Ratio1.46
Top View
8.09 mm5.53 mm1.50 ctF / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 64.0%CrownGirdle: MediumPavilionCulet: NoneDepth 70.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,384 AUD|Low: $728 AUD|High: $2,384 AUD|Avg: $1,556 AUD
Helzberg Diamonds
Retailer 2
September 23, 2026
Retailer 2$728 AUD
Helzberg Diamonds$2,384 AUD

1 data point across 2 retailers

2 retailers$728 AUD to $2,384 AUD

B+
Cheapest Retailer
-
$728 AUD
Most Expensive
C
Helzberg Diamonds
ZXZOILMMLIHP · Nov 6
$2,384 AUD
$1,638 USD
View
1 more retailer has this diamond
Prices start from $728 AUDSave up to $1,656 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.

B+
1.50ct Radiant
$728 AUD