CaratHunter
Plans
Round|Lab Grown|IGI

4.00ct E FL Round Lab Grown Diamond

EX • E/FL

Diamond specifications and retailer prices

From $4,120 NZD
$2,322 USD
As of November 1, 2026
Save $19,006 NZD (82%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $23,126 NZD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 4ct lab-grown round diamond

This 4ct lab-grown round sits in the three to five carat band, graded E 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 31, 2026, with prices from $4,120 to $23,126, a $19,006 spread on the same certified stone. Blue Nile lists it at $23,126. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.00
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions10.08 × 10.16 × 6.35 mm
L/W Ratio1.01
Top View
10.08 mm10.16 mm4.00 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 54.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 63.0%

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 1
Current: $23,126 NZD|Low: $3,957 NZD|High: $24,897 NZD|Avg: $11,020 NZD|+43.1%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 27, 2026
Retailer 2$4,120 NZD
Retailer 5$4,484 NZD
Retailer 4$5,126 NZD
Retailer 3$7,253 NZD
Blue Nile$23,126 NZD
Retailer 6$24,897 NZD

4 data points across 6 retailers

5 retailers$4,120 NZD to $23,126 NZD

A
Cheapest Retailer
-
$4,120 NZD
$2,322 USD
A
Retailer 2
-
$4,484 NZD
$2,527 USD
View
A
Retailer 3
-
$5,126 NZD
$2,889 USD
View
A
Retailer 4
-
$7,253 NZD
$4,088 USD
View
Most Expensive
B
Blue Nile
30353363 · Oct 31
$23,126 NZD
$13,034 USD
View
4 more retailers have this diamond
Prices start from $4,120 NZDSave up to $19,006 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
4.00ct Round
$4,120 NZD