Emerald|Lab Grown|IGI

4.51ct F IF Emerald Lab Grown Diamond

ID • F/IF • IGI LG751510633

Shape and cutting style on the report: Emerald cut

Certificate IGI LG751510633

Diamond specifications and retailer prices

From $3,046 USD
As of October 30, 2026
Save $9,261 USD (75%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $12,307 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 4.51ct lab-grown emerald diamond

This 4.51ct lab-grown emerald sits in the three to five carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG751510633 or 751510633. Listed at 24 retailers as of October 30, 2026, with prices from $3,046 to $12,307, a $9,261 spread on the same certified stone. Taylor and Hart lists it at $12,307. 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
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG751510633
Dimensions11.34 × 7.51 × 4.83 mm
L/W Ratio1.51
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.34 mm7.51 mm4.51 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG751510633
Side View
Table 67.0%Crown 34.1°Girdle: MED-STKPavilion 34.5°Culet: LargeDepth 64.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $8,957 USD|Low: $2,925 USD|High: $14,310 USD|Avg: $6,344 USD|-1.1%
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
November 1, 2026
Retailer 3$3,046 USD
Retailer 7$3,315 USD
Retailer 4$3,534 USD
Retailer 6$3,534 USD
Retailer 14$3,535 USD
Retailer 5$4,416 USD
Retailer 2$4,529 USD
Retailer 10$4,679 USD
Retailer 15$5,050 USD
Retailer 13$5,629 USD
Retailer 12$7,520 USD
Retailer 9$7,571 USD
Retailer 16$8,462 USD
Retailer 1$8,957 USD
Retailer 11$10,020 USD
Retailer 8$11,865 USD

38 data points across 16 retailers

24 retailers$3,046 USD to $12,307 USD

A
Cheapest Retailer
-
$3,046 USD
A
Retailer 2
-
$3,315 USD
View
A
Retailer 3
-
$3,534 USD
View
Retailer 4
-
$3,534 USD
View
Price last confirmed 20 days ago
A
Retailer 5
-
$3,535 USD
View
A
Retailer 6
-
$3,562 USD
View
A
Retailer 7
-
$3,740 USD
View
Final sale: no returns
A
Retailer 8
-
$4,096 USD
HK$32,000 HKD
View
B+
Retailer 9
-
$4,416 USD
View
B+
Retailer 10
-
$4,529 USD
View
B+
Retailer 11
-
$4,679 USD
£3,685 GBP
View
B+
Retailer 12
-
$5,050 USD
View
Retailer 13
-
$5,186 USD
View
Price last confirmed 33 days ago
B+
Retailer 14
-
$5,629 USD
€5,361 EUR
View
B+
Retailer 15
-
$6,096 USD
£4,800 GBP
View
B+
Retailer 16
-
$6,481 USD
View
Retailer 17
-
$6,713 USD
View
Price last confirmed 97 days ago
B+
Retailer 18
-
$7,520 USD
ZAR 121,491 ZAR
View
B
Retailer 19
-
$7,571 USD
A$11,647 AUD
View
B
Retailer 20
-
$8,462 USD
View
B
Retailer 21
-
$8,957 USD
£7,053 GBP
View
B
Retailer 22
-
$10,020 USD
View
B
Retailer 23
-
$11,865 USD
SGD 16,034 SGD
View
Most Expensive
B
Taylor and Hart
QWE3QJV · Oct 31
$12,307 USD
View
23 more retailers have this diamond
Prices start from $3,046 USDSave up to $9,261 USD

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
$3,046 USD