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Emerald|Lab Grown

0.51ct D SI1 Emerald Lab Grown Diamond

VG • D/SI1 • TA41-1226-1226

Diamond specifications and retailer prices

From £148 GBP
$197 USD
As of October 29, 2026
Save £443 GBP (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £591 GBP at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 0.51ct lab-grown emerald diamond

This 0.51ct lab-grown emerald sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade. Listed at 4 retailers as of October 28, 2026, with prices from £148 to £591, a £443 spread on the same certified stone. NZ Jewellers lists it at £591. 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

0.51
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading Lab
CertificateTA41-1226-1226
Dimensions5.30 × 3.90 × 2.50 mm
L/W Ratio1.36
Top View
5.30 mm3.90 mm0.51 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateTA41-1226-1226
Side View
Table 65.3%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: £591 GBP|Low: £143 GBP|High: £591 GBP|Avg: £244 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 11, 2026
Retailer 2£148 GBP
Retailer 4£172 GBP
Retailer 3£184 GBP
NZ Jewellers£591 GBP

7 data points across 4 retailers

4 retailers£148 GBP to £591 GBP

B+
Cheapest Retailer
-
£148 GBP
$197 USD
B+
Retailer 2
-
£172 GBP
$229 USD
View
B
Retailer 3
-
£184 GBP
$245 USD
View
Most Expensive
C
NZ Jewellers
e34cb6e3-29b9-4250-a514-a07033fd2b77 · Oct 28
£591 GBP
$787 USD
View
3 more retailers have this diamond
Prices start from £148 GBPSave up to £443 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+
0.51ct Emerald
£148 GBP