Emerald|Lab Grown|GCAL

0.55ct E SI2 Emerald Lab Grown Diamond

GD • E/SI2 • GCAL 312450087

Certificate GCAL 312450087

Diamond specifications and retailer prices

From £114 GBP
As of November 4, 2026
Save £636 GBP (85%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,024 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.55ct lab-grown emerald diamond

This 0.55ct lab-grown emerald sits in the half to three-quarter carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by GCAL 312450087. Listed at 8 retailers as of November 4, 2026, with a 556% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.55
Carat
E
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishGood
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGCAL
CertificateGCAL 312450087
Dimensions7.19 × 4.57 × 2.83 mm
L/W Ratio1.57
Top View
7.19 mm4.57 mm0.55 ctE / SI2
OriginLab Grown
CutGood
PolishGood
SymmetryVery Good
FluorescenceNone
CertificateGCAL 312450087
Side View
Table 59.0%CrownGirdle: ThickPavilionCulet: NoneDepth 61.9%

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: Nov 4
Current: £1,024 GBP|Low: £114 GBP|High: £1,062 GBP|Avg: £387 GBP|-3.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 4, 2026
Retailer 8£114 GBP
Retailer 4£119 GBP
Retailer 9£158 GBP
Retailer 10£197 GBP
Retailer 7£212 GBP
Retailer 3£260 GBP
Retailer 2£305 GBP
Retailer 5£305 GBP
Retailer 6£750 GBP
MOH London£1,024 GBP

19 data points across 10 retailers

8 retailers£114 GBP to £750 GBP

B
Cheapest Retailer
-
£114 GBP
B+
Retailer 2
-
£119 GBP
View
B
Retailer 3
-
£212 GBP
View
B
Retailer 4
-
£260 GBP
View
B
Retailer 5
-
£305 GBP
View
B
Retailer 6
-
£305 GBP
View
C
Retailer 7
-
£750 GBP
View
Most Expensive
MOH London
312450087 · Nov 2
£1,024 GBP
View
Price under review
7 more retailers have this diamond
Prices start from £114 GBPSave up to £636 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+
0.55ct Emerald
£114 GBP