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Round|Lab Grown|UNKNOWN

0.40ct F SI2 Round Lab Grown Diamond

EX • F/SI2 • UNKNOWN 3524222422

Certificate UNKNOWN 3524222422

Diamond specifications and retailer prices

From $197 USD
As of October 29, 2026
Save $589 USD (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $786 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.4ct lab-grown round diamond

This 0.4ct lab-grown round sits in the sub-half-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by UNKNOWN 3524222422. Listed at 5 retailers as of October 29, 2026, with prices from $197 to $786, a $589 spread on the same certified stone. NZ Jewellers lists it at $786. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.40
Carat
F
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 3524222422
Dimensions4.81 × 4.77 × 2.88 mm
L/W Ratio1.01
Top View
4.81 mm4.77 mm0.40 ctF / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateUNKNOWN 3524222422
Side View
Table 54.1%CrownGirdlePavilionCuletDepth 60.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $197 USD|Low: $189 USD|High: $426 USD|Avg: $278 USD|+4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 10, 2026
Retailer 1$197 USD
Retailer 4$229 USD
Retailer 2$244 USD
Retailer 3$426 USD

4 data points across 4 retailers

5 retailers$197 USD to $786 USD

A
Cheapest Retailer
-
$197 USD
B+
Retailer 2
-
$229 USD
View
B+
Retailer 3
-
$244 USD
View
B
Retailer 4
-
$426 USD
View
Most Expensive
C
NZ Jewellers
ce3f03a2-23d4-4b0a-9541-bdac64155067 · Oct 30
$786 USD
View
4 more retailers have this diamond
Prices start from $197 USDSave up to $589 USD

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
0.40ct Round
$197 USD