Emerald|Lab Grown|UNKNOWN

0.51ct F SI1 Emerald Lab Grown Diamond

ID • F/SI1 • UNKNOWN 45262693

Certificate UNKNOWN 45262693

Diamond specifications and retailer prices

From €162 EUR
$182 USD
As of November 1, 2026
Save €485 EUR (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €647 EUR at NZ Jewellers · As of October 31, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by UNKNOWN 45262693. Listed at 5 retailers as of October 31, 2026, with prices from €162 to €647, a €485 spread on the same certified stone. NZ Jewellers lists it at €647. 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

0.51
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 45262693
Dimensions5.44 × 3.80 × 2.51 mm
L/W Ratio1.43
Top View
5.44 mm3.80 mm0.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateUNKNOWN 45262693
Side View
Table 62.9%CrownGirdlePavilionCuletDepth 66.2%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: €647 EUR|Low: €156 EUR|High: €647 EUR|Avg: €289 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 11, 2026
Retailer 2€162 EUR
Retailer 5€188 EUR
Retailer 3€201 EUR
Retailer 4€356 EUR
NZ Jewellers€647 EUR

8 data points across 5 retailers

5 retailers€162 EUR to €647 EUR

A
Cheapest Retailer
-
€162 EUR
$182 USD
B+
Retailer 2
-
€188 EUR
$211 USD
View
B+
Retailer 3
-
€201 EUR
$226 USD
View
B
Retailer 4
-
€356 EUR
$399 USD
View
Most Expensive
C
NZ Jewellers
2ee9a139-441c-49e1-ac97-6b6d5e866d4b · Oct 31
€647 EUR
$726 USD
View
4 more retailers have this diamond
Prices start from €162 EURSave up to €485 EUR

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
0.51ct Emerald
€162 EUR