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Radiant|Lab Grown|IGI

1.25ct D FL Radiant Lab Grown Diamond

GD • D/FL

Diamond specifications and retailer prices

From $415 NZD
$234 USD
As of November 2, 2026
Save $2,812 NZD (87%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $3,227 NZD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.25ct lab-grown radiant diamond

This 1.25ct 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), with a standard cut grade and certified by IGI. Listed at 5 retailers as of October 31, 2026, with prices from $415 to $3,227, a $2,812 spread on the same certified stone. Blue Nile lists it at $3,227. 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

1.25
Carat
D
Colour
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions7.48 × 5.12 × 3.74 mm
L/W Ratio1.46
Top View
7.48 mm5.12 mm1.25 ctD / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 67.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 73.0%

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 2
Current: $3,227 NZD|Low: $415 NZD|High: $4,674 NZD|Avg: $2,073 NZD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 27, 2026
Retailer 2$415 NZD
Retailer 5$481 NZD
Retailer 3$942 NZD
Retailer 4$1,826 NZD
Blue Nile$3,227 NZD
Retailer 6$4,674 NZD

12 data points across 6 retailers

5 retailers$415 NZD to $3,227 NZD

A
Cheapest Retailer
-
$415 NZD
$234 USD
A
Retailer 2
-
$481 NZD
$271 USD
View
B+
Retailer 3
-
$942 NZD
$531 USD
View
B
Retailer 4
-
$1,826 NZD
$1,029 USD
View
Most Expensive
C
Blue Nile
30353582 · Oct 31
$3,227 NZD
$1,819 USD
View
4 more retailers have this diamond
Prices start from $415 NZDSave up to $2,812 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
1.25ct Radiant
$415 NZD