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Emerald|Lab Grown|IGI

1.00ct K SI1 Emerald Lab Grown Diamond

ID • K/SI1 • IGI LG451057957

Shape and cutting style on the report: Emerald cut

Certificate IGI LG451057957

Diamond specifications and retailer prices

From €347 EUR
As of November 6, 2026
Save €1,337 EUR (79%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €1,685 EUR at MOH London · As of November 3, 2026
View at MOH London

About this 1ct lab-grown emerald diamond

This 1ct lab-grown emerald sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451057957 or 451057957. Listed at 9 retailers as of November 3, 2026, with prices from €347 to €1,685, a €1,337 spread on the same certified stone. MOH London lists it at €1,685. 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

1.00
Carat
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle30.2°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057957
Dimensions7.16 × 4.63 × 2.94 mm
L/W Ratio1.55
Culet sizeLong
Cert comments
undefined
Top View
7.16 mm4.63 mm1.00 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG451057957
Side View
Table 66.0%Crown 30.2°Girdle: MediumPavilion 39.5°Culet: LNGDepth 63.5%

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: €1,685 EUR|Low: €334 EUR|High: €1,705 EUR|Avg: €844 EUR|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4€347 EUR
Retailer 5€431 EUR
Retailer 7€431 EUR
Retailer 2€561 EUR
Retailer 6€684 EUR
Retailer 8€781 EUR
Retailer 3€1,210 EUR
MOH London€1,685 EUR

16 data points across 8 retailers

9 retailers€347 EUR to €1,685 EUR

A
Cheapest Retailer
-
€347 EUR
B+
Retailer 2
-
€389 EUR
View
B+
Retailer 3
-
€431 EUR
View
Retailer 4
-
€431 EUR
View
Price last confirmed 12 days ago
B+
Retailer 5
-
€561 EUR
View
B+
Retailer 6
-
€684 EUR
View
B
Retailer 7
-
€1,210 EUR
View
B
Retailer 8
-
€1,386 EUR
View
Most Expensive
B
MOH London
LG451057957 · Nov 3
€1,685 EUR
£1,489 GBP
View
8 more retailers have this diamond
Prices start from €347 EURSave up to €1,337 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
1.00ct Emerald
€347 EUR