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Emerald|Lab Grown|IGI

4.51ct D IF Emerald Lab Grown Diamond

ID • D/IF • IGI LG784623925

Shape and cutting style on the report: Emerald cut

Certificate IGI LG784623925

Diamond specifications and retailer prices

From $9,157 NZD
As of November 4, 2026
Save $32,112 NZD (78%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $62,995 NZD at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 4.51ct lab-grown emerald diamond

This 4.51ct lab-grown emerald sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG784623925 or 784623925. Listed at 22 retailers as of October 31, 2026, with a 351% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.51
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.1°
Pavilion angle45.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784623925
Dimensions11.64 × 7.75 × 5.08 mm
L/W Ratio1.50
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
11.64 mm7.75 mm4.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784623925
Side View
Table 64.0%Crown 31.1°Girdle: MediumPavilion 45.3°Culet: LargeDepth 65.5%

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: Nov 4
Current: $14,914 NZD|Low: $8,790 NZD|High: $41,084 NZD|Avg: $17,005 NZD|-1.5%
Retailer 1
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
Retailer 15
Retailer 16
Retailer 17
November 4, 2026
Retailer 15$9,157 NZD
Retailer 5$9,596 NZD
Retailer 7$9,786 NZD
Retailer 8$10,256 NZD
Retailer 4$10,622 NZD
Retailer 17$10,622 NZD
Retailer 14$10,650 NZD
Retailer 13$13,319 NZD
Retailer 3$13,918 NZD
Retailer 1$14,914 NZD
Retailer 2$16,413 NZD
Retailer 9$16,663 NZD
Retailer 11$23,857 NZD
Retailer 10$25,031 NZD
Retailer 12$25,866 NZD
Retailer 16$26,978 NZD
Retailer 6$41,084 NZD

42 data points across 17 retailers

22 retailers$9,157 NZD to $41,269 NZD

A
Cheapest Retailer
-
$9,157 NZD
A
Retailer 2
-
$9,596 NZD
View
A
Retailer 3
-
$9,786 NZD
View
A
Retailer 4
-
$10,256 NZD
View
Final sale: no returns
A
Retailer 5
-
$10,583 NZD
View
Retailer 6
-
$10,622 NZD
View
Price last confirmed 19 days ago
A
Retailer 7
-
$10,622 NZD
View
A
Retailer 8
-
$10,650 NZD
View
A
Retailer 9
-
$13,319 NZD
View
A
Retailer 10
-
$13,918 NZD
View
A
Retailer 11
-
$14,201 NZD
View
A
Retailer 12
-
$14,914 NZD
View
B+
Retailer 13
-
$16,413 NZD
View
B+
Retailer 14
-
$16,663 NZD
View
B+
Retailer 15
-
$23,857 NZD
View
B+
Retailer 16
-
$25,031 NZD
View
B
Retailer 17
-
$25,866 NZD
View
B
Retailer 18
-
$26,978 NZD
View
B
Retailer 19
-
$29,236 NZD
View
B
Retailer 20
-
$41,084 NZD
View
B
Retailer 21
-
$41,269 NZD
View
Most Expensive
Do Amore Diamonds
27-1BD641877 · Nov 4
$62,995 NZD
$35,430 USD
View
Price under review
21 more retailers have this diamond
Prices start from $9,157 NZDSave up to $32,112 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
4.51ct Emerald
$9,157 NZD