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Radiant|Lab Grown|IGI

0.73ct D FL Radiant Lab Grown Diamond

VG • D/FL

Diamond specifications and retailer prices

From $334 NZD
As of November 4, 2026
Save $998 NZD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,412 NZD at Helzberg Diamonds · As of October 13, 2026
View at Helzberg Diamonds

About this 0.73ct lab-grown radiant diamond

This 0.73ct lab-grown radiant sits in the half to three-quarter carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI. Listed at 9 retailers as of November 4, 2026, with a 298% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.73
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions6.42 × 4.52 × 2.90 mm
L/W Ratio1.42
Top View
6.42 mm4.52 mm0.73 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 68.0%CrownGirdle: MediumPavilionCuletDepth 64.2%

Caratlytics Score

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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: $2,412 NZD|Low: $334 NZD|High: $2,412 NZD|Avg: $920 NZD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 4$334 NZD
Retailer 6$393 NZD
Retailer 2$414 NZD
Retailer 5$420 NZD
Retailer 3$1,332 NZD
Helzberg Diamonds$2,412 NZD

22 data points across 6 retailers

9 retailers$334 NZD to $1,332 NZD

A
Cheapest Retailer
-
$334 NZD
Retailer 2
-
$338 NZD
View
Price last confirmed 10 days ago
Retailer 3
-
$393 NZD
View
Price last confirmed 13 days ago
A
Retailer 4
-
$414 NZD
View
Retailer 5
-
$420 NZD
View
Price last confirmed 12 days ago
Retailer 6
-
$420 NZD
View
Price last confirmed 12 days ago
B
Retailer 7
-
$1,332 NZD
View
Retailer 8
-
$1,352 NZD
View
Price last confirmed 12 days ago
Most Expensive
Helzberg Diamonds
ZXZNOMMNMLHH · Oct 13
$2,412 NZD
$1,356 USD
View
Price last confirmed 23 days ago
8 more retailers have this diamond
Prices start from $334 NZDSave up to $998 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.

A
0.73ct Radiant
$334 NZD