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Radiant|Lab Grown|IGI

1.31ct D FL Radiant Lab Grown Diamond

D/FL

Diamond specifications and retailer prices

From $378 AUD
$265 USD
As of November 2, 2026
Save $3,172 AUD (89%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,550 AUD at Helzberg Diamonds · As of November 2, 2026
View at Helzberg Diamonds

About this 1.31ct lab-grown radiant diamond

This 1.31ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless) and certified by IGI. Listed at 6 retailers as of November 2, 2026, with prices from $378 to $3,550, a $3,172 spread on the same certified stone. Helzberg Diamonds lists it at $3,550. 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

1.31
Carat
D
Colour
FL
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions7.73 × 5.35 × 3.67 mm
L/W Ratio1.44
Top View
7.73 mm5.35 mm1.31 ctD / FL
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 65.0%CrownGirdle: MED-STKPavilionCuletDepth 68.6%

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 2
Current: $3,550 AUD|Low: $378 AUD|High: $3,550 AUD|Avg: $1,450 AUD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 2$378 AUD
Retailer 6$455 AUD
Retailer 3$487 AUD
Retailer 5$487 AUD
Retailer 4$1,565 AUD
Helzberg Diamonds$3,550 AUD

10 data points across 6 retailers

6 retailers$378 AUD to $3,550 AUD

A
Cheapest Retailer
-
$378 AUD
$265 USD
B+
Retailer 2
-
$455 AUD
$319 USD
View
Retailer 3
-
$487 AUD
$341 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$487 AUD
$341 USD
View
B
Retailer 5
-
$1,565 AUD
$1,097 USD
View
Most Expensive
C
Helzberg Diamonds
ZXZOGKMKPMMO · Nov 2
$3,550 AUD
$2,488 USD
View
5 more retailers have this diamond
Prices start from $378 AUDSave up to $3,172 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
1.31ct Radiant
$378 AUD