CaratHunter
Plans
Emerald|Lab Grown|IGI

1.51ct E FL Emerald Lab Grown Diamond

EX • E/FL • IGI LG780663551

Shape and cutting style on the report: Emerald cut

Certificate IGI LG780663551

Diamond specifications and retailer prices

From $1,158 NZD
HK$5,100 HKD
As of October 31, 2026
Save $4,697 NZD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,855 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780663551 or 780663551. Listed at 13 retailers as of October 30, 2026, with prices from $1,158 to $5,855, a $4,697 spread on the same certified stone. Brilliant Earth lists it at $5,855. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663551
Dimensions7.61 × 5.38 × 3.65 mm
L/W Ratio1.41
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
7.61 mm5.38 mm1.51 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663551
Side View
Table 62.0%Crown 32.8°Girdle: Slightly ThickPavilion 40.2°Culet: LargeDepth 67.8%

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: Oct 31
Current: $5,855 NZD|Low: $657 NZD|High: $6,778 NZD|Avg: $2,464 NZD|-13.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 31, 2026
Retailer 6$657 NZD
Retailer 10$1,158 NZD
Retailer 4$1,428 NZD
Retailer 12$1,430 NZD
Retailer 7$1,559 NZD
Retailer 2$1,660 NZD
Retailer 8$1,736 NZD
Retailer 3$1,902 NZD
Retailer 14$2,358 NZD
Retailer 13$3,303 NZD
Retailer 5$3,483 NZD
Retailer 9$3,716 NZD
Retailer 11$3,781 NZD
Brilliant Earth$5,855 NZD

42 data points across 14 retailers

13 retailers$1,158 NZD to $5,855 NZD

A
Cheapest Retailer
-
$1,158 NZD
HK$5,100 HKD
A
Retailer 2
-
$1,428 NZD
$805 USD
View
A
Retailer 3
-
$1,430 NZD
$806 USD
View
A
Retailer 4
-
$1,559 NZD
€837 EUR
View
A
Retailer 5
-
$1,660 NZD
£737 GBP
View
A
Retailer 6
-
$1,736 NZD
ZAR 15,810 ZAR
View
B+
Retailer 7
-
$1,902 NZD
$1,072 USD
View
B+
Retailer 8
-
$2,358 NZD
$1,329 USD
View
B
Retailer 9
-
$3,303 NZD
$1,862 USD
View
B
Retailer 10
-
$3,483 NZD
$1,963 USD
View
B
Retailer 11
-
$3,716 NZD
£1,649 GBP
View
B
Retailer 12
-
$3,781 NZD
$2,131 USD
View
Most Expensive
B
Brilliant Earth
19088160A · Oct 30
$5,855 NZD
$3,300 USD
View
12 more retailers have this diamond
Prices start from $1,158 NZDSave up to $4,697 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
1.51ct Emerald
$1,158 NZD