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Emerald|Lab Grown|IGI

4.51ct D IF Emerald Lab Grown Diamond

ID • D/IF • IGI LG738511294

Shape and cutting style on the report: Emerald cut

Certificate IGI LG738511294

Diamond specifications and retailer prices

From $8,979 NZD
As of November 4, 2026
Save $32,706 NZD (78%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $41,685 NZD at With Clarity · As of November 4, 2026
View at With Clarity

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 LG738511294 or 738511294. Listed at 27 retailers as of November 4, 2026, with prices from $8,979 to $41,685, a $32,706 spread on the same certified stone. With Clarity lists it at $41,685. 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 angle33.1°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG738511294
Dimensions10.98 × 7.81 × 5.30 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
10.98 mm7.81 mm4.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG738511294
Side View
Table 61.0%Crown 33.1°Girdle: MediumPavilion 40.2°Culet: LargeDepth 67.9%

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: Nov 4
Current: $16,126 NZD|Low: $8,979 NZD|High: $41,685 NZD|Avg: $19,391 NZD|-4.7%
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
Retailer 18
Retailer 19
With Clarity
November 4, 2026
Retailer 15$8,979 NZD
Retailer 2$9,411 NZD
Retailer 7$10,568 NZD
Retailer 9$10,949 NZD
Retailer 10$10,970 NZD
Retailer 17$12,364 NZD
Retailer 13$13,061 NZD
Retailer 16$13,196 NZD
Retailer 11$14,073 NZD
Retailer 1$16,126 NZD
Retailer 8$18,077 NZD
Retailer 18$22,237 NZD
Retailer 3$22,277 NZD
Retailer 4$24,095 NZD
Retailer 6$24,572 NZD
Retailer 19$28,226 NZD
Retailer 12$28,960 NZD
Retailer 5$31,133 NZD
Retailer 14$38,055 NZD
With Clarity$41,685 NZD

33 data points across 20 retailers

27 retailers$8,979 NZD to $41,685 NZD

A
Cheapest Retailer
-
$8,979 NZD
A
Retailer 2
-
$9,411 NZD
View
A
Retailer 3
-
$10,065 NZD
View
A
Retailer 4
-
$10,568 NZD
View
Final sale: no returns
A
Retailer 5
-
$10,949 NZD
View
Retailer 6
-
$10,949 NZD
View
Price last confirmed 25 days ago
A
Retailer 7
-
$10,970 NZD
View
A
Retailer 8
-
$12,364 NZD
View
A
Retailer 9
-
$13,061 NZD
View
A
Retailer 10
-
$13,196 NZD
View
A
Retailer 11
-
$13,813 NZD
View
A
Retailer 12
-
$14,073 NZD
View
Retailer 13
-
$15,502 NZD
View
Price last confirmed 87 days ago
B+
Retailer 14
-
$15,525 NZD
View
B+
Retailer 15
-
$16,126 NZD
View
B+
Retailer 16
-
$18,077 NZD
View
B+
Retailer 17
-
$20,635 NZD
View
B+
Retailer 18
-
$22,237 NZD
View
B+
Retailer 19
-
$22,277 NZD
View
B
Retailer 20
-
$24,095 NZD
View
B
Retailer 21
-
$24,572 NZD
View
B
Retailer 22
-
$28,226 NZD
View
B
Retailer 23
-
$28,960 NZD
View
B
Retailer 24
-
$31,133 NZD
View
B
Retailer 25
-
$38,055 NZD
View
B
Retailer 26
-
$38,986 NZD
View
Most Expensive
B
With Clarity
738511294 · Nov 4
$41,685 NZD
$23,445 USD
View
26 more retailers have this diamond
Prices start from $8,979 NZDSave up to $32,706 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
$8,979 NZD