Emerald|Lab Grown|UNKNOWN

0.40ct G SI1 Emerald Lab Grown Diamond

ID • G/SI1 • UNKNOWN 34442805

Certificate UNKNOWN 34442805

Diamond specifications and retailer prices

From $209 USD
As of October 27, 2026
Save $625 USD (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $834 USD at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 0.4ct lab-grown emerald diamond

This 0.4ct lab-grown emerald sits in the sub-half-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by UNKNOWN 34442805. Listed at 5 retailers as of October 27, 2026, with prices from $209 to $834, a $625 spread on the same certified stone. NZ Jewellers lists it at $834. 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
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 34442805
Dimensions5.23 × 3.43 × 2.32 mm
L/W Ratio1.52
Top View
5.23 mm3.43 mm0.40 ctG / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateUNKNOWN 34442805
Side View
Table 65.9%CrownGirdlePavilionCuletDepth 67.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $834 USD|Low: $201 USD|High: $834 USD|Avg: $371 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 11, 2026
Retailer 2$209 USD
Retailer 5$243 USD
Retailer 3$259 USD
Retailer 4$446 USD
NZ Jewellers$834 USD

8 data points across 5 retailers

5 retailers$209 USD to $834 USD

B+
Cheapest Retailer
-
$209 USD
B+
Retailer 2
-
$243 USD
View
B+
Retailer 3
-
$259 USD
View
C
Retailer 4
-
$446 USD
View
Most Expensive
C
NZ Jewellers
912bb0c3-ab3d-419a-8f11-40b5107cb806 · Oct 28
$834 USD
View
4 more retailers have this diamond
Prices start from $209 USDSave up to $625 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.

B+
0.40ct Emerald
$209 USD