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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 $694 NZD
As of November 6, 2026
Save $2,670 NZD (79%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,364 NZD 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 $694 to $3,364, a $2,670 spread on the same certified stone. MOH London lists it at $3,364. 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
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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: $3,364 NZD|Low: $667 NZD|High: $3,405 NZD|Avg: $1,685 NZD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4$694 NZD
Retailer 5$861 NZD
Retailer 7$861 NZD
Retailer 2$1,121 NZD
Retailer 6$1,366 NZD
Retailer 8$1,560 NZD
Retailer 3$2,416 NZD
MOH London$3,364 NZD

16 data points across 8 retailers

9 retailers$694 NZD to $3,364 NZD

A
Cheapest Retailer
-
$694 NZD
B+
Retailer 2
-
$777 NZD
View
B+
Retailer 3
-
$861 NZD
View
Retailer 4
-
$861 NZD
View
Price last confirmed 12 days ago
B+
Retailer 5
-
$1,121 NZD
View
B+
Retailer 6
-
$1,366 NZD
View
B
Retailer 7
-
$2,416 NZD
View
B
Retailer 8
-
$2,768 NZD
View
Most Expensive
B
MOH London
LG451057957 · Nov 3
$3,364 NZD
£1,489 GBP
View
8 more retailers have this diamond
Prices start from $694 NZDSave up to $2,670 NZD

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
$694 NZD