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Emerald|Lab Grown|UNKNOWN

0.50ct G SI1 Emerald Lab Grown Diamond

ID • G/SI1 • UNKNOWN 31544725

Certificate UNKNOWN 31544725

Diamond specifications and retailer prices

From £128 GBP
$172 USD
As of October 29, 2026
Save £382 GBP (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £510 GBP at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 0.5ct lab-grown emerald diamond

This 0.5ct lab-grown emerald sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by UNKNOWN 31544725. Listed at 5 retailers as of October 28, 2026, with prices from £128 to £510, a £382 spread on the same certified stone. NZ Jewellers lists it at £510. 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

0.50
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 31544725
Dimensions5.64 × 3.65 × 2.35 mm
L/W Ratio1.55
Top View
5.64 mm3.65 mm0.50 ctG / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateUNKNOWN 31544725
Side View
Table 58.0%CrownGirdlePavilionCuletDepth 64.2%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: £510 GBP|Low: £123 GBP|High: £510 GBP|Avg: £229 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 11, 2026
Retailer 2£128 GBP
Retailer 5£149 GBP
Retailer 3£159 GBP
Retailer 4£283 GBP
NZ Jewellers£510 GBP

8 data points across 5 retailers

5 retailers£128 GBP to £510 GBP

B+
Cheapest Retailer
-
£128 GBP
$172 USD
B+
Retailer 2
-
£149 GBP
$199 USD
View
B+
Retailer 3
-
£159 GBP
$213 USD
View
B
Retailer 4
-
£283 GBP
$379 USD
View
Most Expensive
C
NZ Jewellers
d0ac07a3-12b6-47b7-87d3-fb8d64eb6a2c · Oct 28
£510 GBP
$684 USD
View
4 more retailers have this diamond
Prices start from £128 GBPSave up to £382 GBP

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+
0.50ct Emerald
£128 GBP