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Radiant|Lab Grown|IGI

1.89ct D FL Radiant Lab Grown Diamond

EX • D/FL

Diamond specifications and retailer prices

From $985 NZD
$555 USD
As of October 30, 2026
Save $6,054 NZD (86%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $7,039 NZD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.89ct lab-grown radiant diamond

This 1.89ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI. Listed at 5 retailers as of October 30, 2026, with prices from $985 to $7,039, a $6,054 spread on the same certified stone. Blue Nile lists it at $7,039. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.89
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions8.50 × 6.21 × 4.31 mm
L/W Ratio1.37
Top View
8.50 mm6.21 mm1.89 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 66.0%CrownGirdle: MediumPavilionCulet: NoneDepth 69.4%

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: Oct 30
Current: $7,039 NZD|Low: $985 NZD|High: $9,159 NZD|Avg: $4,040 NZD|+8.5%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 27, 2026
Retailer 2$985 NZD
Retailer 5$1,104 NZD
Retailer 3$1,650 NZD
Retailer 4$3,547 NZD
Blue Nile$7,039 NZD
Retailer 6$9,159 NZD

9 data points across 6 retailers

5 retailers$985 NZD to $7,039 NZD

A
Cheapest Retailer
-
$985 NZD
$555 USD
A
Retailer 2
-
$1,104 NZD
$622 USD
View
A
Retailer 3
-
$1,650 NZD
$930 USD
View
B+
Retailer 4
-
$3,547 NZD
$1,999 USD
View
Most Expensive
B
Blue Nile
30353459 · Oct 31
$7,039 NZD
$3,967 USD
View
4 more retailers have this diamond
Prices start from $985 NZDSave up to $6,054 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
1.89ct Radiant
$985 NZD