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Emerald|Lab Grown|IGI

1.51ct I SI1 Emerald Lab Grown Diamond

ID • I/SI1 • IGI LG499108039

Shape and cutting style on the report: Emerald cut

Certificate IGI LG499108039

Diamond specifications and retailer prices

From $1,854 AUD
$1,304 USD
As of October 27, 2026
Save $2,178 AUD (54%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,949 AUD at MOH London · As of October 21, 2026
View at MOH London

About this 1.51ct lab-grown emerald diamond

This 1.51ct lab-grown emerald sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499108039 or 499108039. Listed at 10 retailers as of October 27, 2026, with a 117% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.51
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle23.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499108039
Dimensions8.18 × 5.34 × 3.37 mm
L/W Ratio1.53
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.18 mm5.34 mm1.51 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG499108039
Side View
Table 65.0%Crown 23.7°Girdle: Slightly ThickPavilion 40.9°Culet: LNGDepth 63.1%

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 27
Current: $6,949 AUD|Low: $1,780 AUD|High: $6,996 AUD|Avg: $3,072 AUD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 18, 2026
Retailer 2$1,854 AUD
Retailer 4$1,905 AUD
Retailer 9$2,018 AUD
Retailer 5$2,151 AUD
Retailer 8$2,151 AUD
Retailer 11$2,396 AUD
Retailer 3$2,963 AUD
Retailer 6$3,403 AUD
Retailer 10$4,010 AUD
Retailer 7$4,033 AUD
MOH London$6,949 AUD

13 data points across 11 retailers

10 retailers$1,854 AUD to $4,033 AUD

B+
Cheapest Retailer
-
$1,854 AUD
$1,304 USD
B+
Retailer 2
-
$1,905 AUD
$1,340 USD
View
B+
Retailer 3
-
$2,018 AUD
$1,419 USD
View
B
Retailer 4
-
$2,151 AUD
$1,513 USD
View
Price last confirmed 16 days ago
B
Retailer 5
-
$2,151 AUD
$1,513 USD
View
B
Retailer 6
-
$2,396 AUD
$1,685 USD
View
B
Retailer 7
-
$3,403 AUD
$2,393 USD
View
B
Retailer 8
-
$4,010 AUD
$2,820 USD
View
B
Retailer 9
-
$4,033 AUD
$2,836 USD
View
Most Expensive
B
MOH London
LG499108039 · Oct 21
$6,949 AUD
£3,848 GBP
View
Price last confirmed 8 days ago
9 more retailers have this diamond
Prices start from $1,854 AUDSave up to $2,178 AUD

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+
1.51ct Emerald
$1,854 AUD