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Emerald|Lab Grown|GIA

1.43ct D SI1 Emerald Lab Grown Diamond

ID • D/SI1 • GIA 2506534944

Certificate GIA 2506534944

Diamond specifications and retailer prices

From £186 GBP
As of November 6, 2026
Save £635 GBP (77%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £821 GBP at NZ Jewellers · As of November 6, 2026
View at NZ Jewellers

About this 1.43ct lab-grown emerald diamond

This 1.43ct lab-grown emerald sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2506534944. Listed at 6 retailers as of November 6, 2026, with prices from £186 to £821, a £635 spread on the same certified stone. NZ Jewellers lists it at £821. 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

1.43
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 2506534944
Dimensions7.95 × 5.21 × 3.57 mm
L/W Ratio1.53
Girdle conditionPolished
Cert comments
This is a man-made diamond.
Key to symbols
Growth Remnant
Top View
7.95 mm5.21 mm1.43 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2506534944
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £821 GBP|Low: £184 GBP|High: £1,256 GBP|Avg: £566 GBP|-4.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 4, 2026
Retailer 2£186 GBP
Retailer 3£216 GBP
Retailer 4£231 GBP
Retailer 5£758 GBP
Retailer 6£762 GBP
NZ Jewellers£821 GBP

24 data points across 6 retailers

6 retailers£186 GBP to £821 GBP

A
Cheapest Retailer
-
£186 GBP
A
Retailer 2
-
£216 GBP
View
A
Retailer 3
-
£231 GBP
View
B
Retailer 4
-
£758 GBP
View
B
Retailer 5
-
£762 GBP
View
Most Expensive
B
NZ Jewellers
3593535c-5709-4c06-b052-d874e03a3bfa · Nov 6
£821 GBP
$1,105 USD
View
5 more retailers have this diamond
Prices start from £186 GBPSave up to £635 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.

A
1.43ct Emerald
£186 GBP