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Cushion|Lab Grown|IGI

4.51ct F VS2 Cushion Lab Grown Diamond

EX • F/VS2 • IGI LG780606629

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG780606629

Diamond specifications and retailer prices

From $1,288 AUD
$905 USD
As of October 31, 2026
Save $7,225 AUD (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,513 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.51ct lab-grown cushion diamond

This 4.51ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG780606629 or 780606629. Listed at 11 retailers as of October 31, 2026, with prices from $1,288 to $8,513, a $7,225 spread on the same certified stone. Do Amore Diamonds lists it at $8,513. 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
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780606629
Dimensions9.66 × 9.51 × 6.43 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.66 mm9.51 mm4.51 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780606629
Side View
Table 64.0%Crown 36.7°Girdle: MED-STKPavilion 40°Culet: NoneDepth 67.6%

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 31
Current: $8,513 AUD|Low: $1,288 AUD|High: $9,438 AUD|Avg: $3,569 AUD|-9.8%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 5$1,288 AUD
Retailer 4$1,531 AUD
Retailer 6$1,627 AUD
Retailer 8$1,809 AUD
Retailer 7$1,989 AUD
Retailer 3$2,004 AUD
Retailer 9$4,421 AUD
Retailer 2$4,844 AUD
Retailer 10$5,395 AUD
Retailer 11$5,551 AUD
Do Amore Diamonds$8,513 AUD

9 data points across 11 retailers

11 retailers$1,288 AUD to $8,513 AUD

A
Cheapest Retailer
-
$1,288 AUD
$905 USD
A
Retailer 2
-
$1,531 AUD
HK$8,400 HKD
View
A
Retailer 3
-
$1,627 AUD
$1,143 USD
View
B+
Retailer 4
-
$1,809 AUD
$1,271 USD
View
A
Retailer 5
-
$1,989 AUD
$1,397 USD
View
Retailer 6
-
$4,171 AUD
$2,930 USD
View
Price last confirmed 18 days ago
B+
Retailer 7
-
$4,421 AUD
SGD 4,197 SGD
View
B
Retailer 8
-
$4,844 AUD
£2,679 GBP
View
B
Retailer 9
-
$5,395 AUD
$3,790 USD
View
B
Retailer 10
-
$5,551 AUD
$3,899 USD
View
Most Expensive
B
Do Amore Diamonds
27-D40AF3ECA · Oct 31
$8,513 AUD
$5,980 USD
View
10 more retailers have this diamond
Prices start from $1,288 AUDSave up to $7,225 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 Cushion
$1,288 AUD