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Emerald|Lab Grown|IGI

1.51ct D IF Emerald Lab Grown Diamond

ID • D/IF • IGI LG731580881

Shape and cutting style on the report: Emerald cut

Certificate IGI LG731580881

Diamond specifications and retailer prices

From $430 NZD
$242 USD
As of October 30, 2026
Save $4,209 NZD (91%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $4,639 NZD at Brilliant Earth · As of October 31, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG731580881 or 731580881. Listed at 24 retailers as of October 30, 2026, with prices from $430 to $4,639, a $4,209 spread on the same certified stone. Brilliant Earth lists it at $4,639. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.9°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731580881
Dimensions8.07 × 5.41 × 3.62 mm
L/W Ratio1.49
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
8.07 mm5.41 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731580881
Side View
Table 64.0%Crown 29.9°Girdle: MediumPavilion 40.1°Culet: LargeDepth 66.9%

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 30
Current: $4,639 NZD|Low: $414 NZD|High: $7,731 NZD|Avg: $1,837 NZD|-40.0%
Brilliant Earth
Retailer 2
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Retailer 24
November 1, 2026
Retailer 23$430 NZD
Retailer 22$499 NZD
Retailer 21$507 NZD
Retailer 4$533 NZD
Retailer 14$819 NZD
Retailer 6$835 NZD
Retailer 18$978 NZD
Retailer 11$979 NZD
Retailer 19$1,012 NZD
Retailer 13$1,130 NZD
Retailer 12$1,311 NZD
Retailer 20$1,370 NZD
Retailer 7$1,381 NZD
Retailer 5$1,722 NZD
Retailer 24$1,895 NZD
Retailer 9$2,170 NZD
Retailer 16$2,193 NZD
Retailer 17$2,357 NZD
Retailer 8$2,358 NZD
Retailer 2$2,361 NZD
Retailer 15$2,503 NZD
Retailer 3$3,954 NZD
Retailer 10$4,141 NZD
Brilliant Earth$4,639 NZD

37 data points across 24 retailers

24 retailers$430 NZD to $4,639 NZD

A
Cheapest Retailer
-
$430 NZD
$242 USD
A
Retailer 2
-
$499 NZD
$281 USD
View
A
Retailer 3
-
$507 NZD
$285 USD
View
Final sale: no returns
A
Retailer 4
-
$533 NZD
$300 USD
View
A
Retailer 5
-
$819 NZD
HK$3,600 HKD
View
A
Retailer 6
-
$835 NZD
$470 USD
View
A
Retailer 7
-
$978 NZD
€524 EUR
View
A
Retailer 8
-
$979 NZD
$551 USD
View
A
Retailer 9
-
$1,012 NZD
ZAR 9,202 ZAR
View
A
Retailer 10
-
$1,130 NZD
£501 GBP
View
A
Retailer 11
-
$1,311 NZD
$737 USD
View
A
Retailer 12
-
$1,370 NZD
A$1,186 AUD
View
A
Retailer 13
-
$1,381 NZD
$777 USD
View
B+
Retailer 14
-
$1,722 NZD
$969 USD
View
B+
Retailer 15
-
$1,895 NZD
$1,066 USD
View
B+
Retailer 16
-
$2,170 NZD
$1,221 USD
View
B+
Retailer 17
-
$2,193 NZD
$1,234 USD
View
B+
Retailer 18
-
$2,357 NZD
SGD 1,792 SGD
View
B+
Retailer 19
-
$2,358 NZD
$1,327 USD
View
B+
Retailer 20
-
$2,361 NZD
£1,046 GBP
View
Retailer 21
-
$2,503 NZD
A$2,167 AUD
View
Price last confirmed 31 days ago
B
Retailer 22
-
$3,954 NZD
$2,225 USD
View
B
Retailer 23
-
$4,141 NZD
$2,330 USD
View
Most Expensive
B
Brilliant Earth
16223753Y · Oct 31
$4,639 NZD
$2,610 USD
View
23 more retailers have this diamond
Prices start from $430 NZDSave up to $4,209 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
$430 NZD