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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 $391 NZD
As of November 4, 2026
Save $2,206 NZD (85%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,597 NZD at Brilliant Earth · As of November 4, 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 November 4, 2026, with prices from $391 to $2,597, a $2,206 spread on the same certified stone. Brilliant Earth lists it at $2,597. 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
Colour
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 →
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 4
Current: $2,597 NZD|Low: $350 NZD|High: $3,095 NZD|Avg: $1,296 NZD|-16.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 4, 2026
Retailer 8$350 NZD
Retailer 6$391 NZD
Retailer 10$429 NZD
Retailer 9$768 NZD
Retailer 7$888 NZD
Retailer 2$1,404 NZD
Retailer 11$1,492 NZD
Retailer 5$1,530 NZD
Retailer 4$2,033 NZD
Retailer 3$2,106 NZD
Brilliant Earth$2,597 NZD

16 data points across 11 retailers

10 retailers$391 NZD to $2,597 NZD

Retailer 1
-
$350 NZD
Price last confirmed 44 days ago
B+
Retailer 2
-
$391 NZD
View
Final sale: no returns
Retailer 3
-
$429 NZD
View
Price last confirmed 46 days ago
B+
Retailer 4
-
$888 NZD
View
B
Retailer 5
-
$1,404 NZD
View
B
Retailer 6
-
$1,492 NZD
View
Retailer 7
-
$1,530 NZD
View
Price last confirmed 9 days ago
B
Retailer 8
-
$2,033 NZD
View
B
Retailer 9
-
$2,106 NZD
View
Most Expensive
C
Brilliant Earth
11438317A · Nov 4
$2,597 NZD
$1,460 USD
View
9 more retailers have this diamond
Prices start from $391 NZDSave up to $2,206 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.

B+
1.45ct Emerald
$391 NZD