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Emerald|Lab Grown|UNKNOWN

0.49ct H SI1 Emerald Lab Grown Diamond

ID • H/SI1 • UNKNOWN 310821288

Certificate UNKNOWN 310821288

Diamond specifications and retailer prices

From £175 GBP
$235 USD
As of October 29, 2026
Save £524 GBP (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £699 GBP at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 0.49ct lab-grown emerald diamond

This 0.49ct lab-grown emerald sits in the sub-half-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by UNKNOWN 310821288. Listed at 5 retailers as of October 29, 2026, with prices from £175 to £699, a £524 spread on the same certified stone. NZ Jewellers lists it at £699. 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

0.49
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 310821288
Dimensions5.67 × 3.66 × 2.47 mm
L/W Ratio1.55
Top View
5.67 mm3.66 mm0.49 ctH / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateUNKNOWN 310821288
Side View
Table 60.2%CrownGirdlePavilionCuletDepth 67.5%

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: £699 GBP|Low: £169 GBP|High: £699 GBP|Avg: £310 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 11, 2026
Retailer 2£175 GBP
Retailer 5£204 GBP
Retailer 3£218 GBP
Retailer 4£368 GBP
NZ Jewellers£699 GBP

8 data points across 5 retailers

5 retailers£175 GBP to £699 GBP

B+
Cheapest Retailer
-
£175 GBP
$235 USD
B+
Retailer 2
-
£204 GBP
$273 USD
View
B+
Retailer 3
-
£218 GBP
$292 USD
View
C
Retailer 4
-
£368 GBP
$493 USD
View
Most Expensive
C
NZ Jewellers
37f61d5a-d24b-4ae6-862f-def28f7028d7 · Oct 31
£699 GBP
$937 USD
View
4 more retailers have this diamond
Prices start from £175 GBPSave up to £524 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+
0.49ct Emerald
£175 GBP