Emerald|Lab Grown|IGI

1.45ct D SI1 Emerald Lab Grown Diamond

GD • D/SI1 • IGI LG551277266

Shape and cutting style on the report: Emerald cut

Certificate IGI LG551277266

Diamond specifications and retailer prices

From $220 USD
As of October 30, 2026
Save $1,470 USD (87%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,690 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.45ct lab-grown emerald diamond

This 1.45ct lab-grown emerald sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG551277266 or 551277266. Listed at 10 retailers as of October 29, 2026, with prices from $220 to $1,690, a $1,470 spread on the same certified stone. Brilliant Earth lists it at $1,690. 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

1.45
Carat
D
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG551277266
Dimensions7.59 × 5.50 × 3.56 mm
L/W Ratio1.38
Culet sizeLarge
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.59 mm5.50 mm1.45 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG551277266
Side View
Table 63.0%Crown 33.3°Girdle: MED-STKPavilion 37.9°Culet: LargeDepth 64.7%

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: Oct 30
Current: $1,690 USD|Low: $156 USD|High: $1,740 USD|Avg: $735 USD|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 7$197 USD
Retailer 5$220 USD
Retailer 9$241 USD
Retailer 8$433 USD
Retailer 6$499 USD
Retailer 10$717 USD
Retailer 11$840 USD
Retailer 4$860 USD
Retailer 2$1,149 USD
Retailer 3$1,185 USD
Brilliant Earth$1,690 USD

15 data points across 11 retailers

10 retailers$220 USD to $1,690 USD

Retailer 1
-
$197 USD
Price last confirmed 36 days ago
A
Retailer 2
-
$220 USD
View
Final sale: no returns
Retailer 3
-
$241 USD
View
Price last confirmed 38 days ago
B+
Retailer 4
-
$499 USD
View
Retailer 5
-
$717 USD
View
Price last confirmed 44 days ago
B
Retailer 6
-
$840 USD
View
B
Retailer 7
-
$860 USD
View
B
Retailer 8
-
$1,149 USD
£905 GBP
View
B
Retailer 9
-
$1,185 USD
View
Most Expensive
C
Brilliant Earth
11438317A · Oct 29
$1,690 USD
View
9 more retailers have this diamond
Prices start from $220 USDSave up to $1,470 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.

A
1.45ct Emerald
$220 USD