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Emerald|Lab Grown|IGI

4.51ct F VVS1 Emerald Lab Grown Diamond

ID • F/VVS1 • IGI LG845617018

Shape and cutting style on the report: Emerald cut

Certificate IGI LG845617018

Diamond specifications and retailer prices

From $1,372 AUD
$964 USD
As of October 27, 2026
Save $9,162 AUD (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $10,535 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG845617018 or 845617018. Listed at 22 retailers as of October 27, 2026, with prices from $1,372 to $10,535, a $9,162 spread on the same certified stone. Brilliant Earth lists it at $10,535. 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
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle42.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845617018
Dimensions11.47 × 7.56 × 5.06 mm
L/W Ratio1.52
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.47 mm7.56 mm4.51 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845617018
Side View
Table 67.0%Crown 40.8°Girdle: Slightly ThickPavilion 42.3°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 27
Current: $10,535 AUD|Low: $1,372 AUD|High: $11,118 AUD|Avg: $3,490 AUD|-5.2%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 10$1,372 AUD
Retailer 14$1,525 AUD
Retailer 21$1,525 AUD
Retailer 11$1,626 AUD
Retailer 16$1,829 AUD
Retailer 15$2,152 AUD
Retailer 13$2,264 AUD
Retailer 6$2,417 AUD
Retailer 2$2,437 AUD
Retailer 12$3,047 AUD
Retailer 7$3,376 AUD
Retailer 3$3,387 AUD
Retailer 5$3,418 AUD
Retailer 19$4,171 AUD
Retailer 18$4,361 AUD
Retailer 9$4,732 AUD
Retailer 4$5,307 AUD
Retailer 8$5,408 AUD
Retailer 20$5,502 AUD
Retailer 17$5,694 AUD
Brilliant Earth$10,535 AUD

13 data points across 21 retailers

22 retailers$1,372 AUD to $10,535 AUD

A
Cheapest Retailer
-
$1,372 AUD
$964 USD
Retailer 2
-
$1,525 AUD
$1,071 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$1,525 AUD
$1,071 USD
View
Final sale: no returns
Retailer 4
-
$1,626 AUD
$1,142 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$1,829 AUD
$1,285 USD
View
A
Retailer 6
-
$2,152 AUD
$1,512 USD
View
A
Retailer 7
-
$2,264 AUD
$1,590 USD
View
A
Retailer 8
-
$2,417 AUD
€1,617 EUR
View
A
Retailer 9
-
$2,437 AUD
£1,348 GBP
View
Retailer 10
-
$3,047 AUD
$2,140 USD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$3,376 AUD
ZAR 38,314 ZAR
View
B+
Retailer 12
-
$3,387 AUD
View
B+
Retailer 13
-
$3,418 AUD
$2,401 USD
View
B+
Retailer 14
-
$4,171 AUD
$2,930 USD
View
B+
Retailer 15
-
$4,361 AUD
£2,412 GBP
View
B+
Retailer 16
-
$4,732 AUD
$3,324 USD
View
B+
Retailer 17
-
$5,307 AUD
SGD 5,038 SGD
View
B+
Retailer 18
-
$5,408 AUD
£2,991 GBP
View
B+
Retailer 19
-
$5,502 AUD
$3,865 USD
View
B+
Retailer 20
-
$5,694 AUD
$4,000 USD
View
B
Retailer 21
-
$7,894 AUD
$5,545 USD
View
Most Expensive
B
Brilliant Earth
22284327A · Oct 31
$10,535 AUD
$7,400 USD
View
21 more retailers have this diamond
Prices start from $1,372 AUDSave up to $9,162 AUD

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
$1,372 AUD