CaratHunter
Plans
Emerald|Lab Grown|IGI

1.00ct K SI1 Emerald Lab Grown Diamond

VG • K/SI1 • IGI LG407988501

Shape and cutting style on the report: Emerald cut

Certificate IGI LG407988501

Diamond specifications and retailer prices

From $753 USD
As of November 6, 2026
Save $2,675 USD (78%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,428 USD at MOH London · As of November 1, 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 very-good cut grade and certified by IGI LG407988501 or 407988501. Listed at 9 retailers as of November 1, 2026, with prices from $753 to $3,428, a $2,675 spread on the same certified stone. MOH London lists it at $3,428. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
K
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle15.2°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407988501
Dimensions6.43 × 4.74 × 3.29 mm
L/W Ratio1.36
Culet sizeLong
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
6.43 mm4.74 mm1.00 ctK / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG407988501
Side View
Table 56.5%Crown 15.2°Girdle: ThickPavilion 37.3°Culet: LNGDepth 69.4%

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: Nov 6
Current: $3,428 USD|Low: $722 USD|High: $3,470 USD|Avg: $1,609 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 4$753 USD
Retailer 9$819 USD
Retailer 5$873 USD
Retailer 8$873 USD
Retailer 2$1,050 USD
Retailer 6$1,413 USD
Retailer 3$2,076 USD
Retailer 7$2,454 USD
MOH London$3,428 USD

17 data points across 9 retailers

9 retailers$753 USD to $3,428 USD

B+
Cheapest Retailer
-
$753 USD
B+
Retailer 2
-
$819 USD
View
B+
Retailer 3
-
$873 USD
View
Retailer 4
-
$873 USD
View
Price last confirmed 25 days ago
B
Retailer 5
-
$1,050 USD
View
B
Retailer 6
-
$1,413 USD
View
C
Retailer 7
-
$2,076 USD
View
C
Retailer 8
-
$2,454 USD
View
Most Expensive
C
MOH London
LG407988501 · Nov 1
$3,428 USD
£2,699 GBP
View
8 more retailers have this diamond
Prices start from $753 USDSave up to $2,675 USD

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+
1.00ct Emerald
$753 USD