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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 $1,608 NZD
$905 USD
As of October 31, 2026
Save $9,020 NZD (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $10,628 NZD 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 $1,608 to $10,628, a $9,020 spread on the same certified stone. Do Amore Diamonds lists it at $10,628. 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: $10,628 NZD|Low: $1,608 NZD|High: $11,783 NZD|Avg: $4,455 NZD|-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$1,608 NZD
Retailer 4$1,911 NZD
Retailer 6$2,031 NZD
Retailer 8$2,259 NZD
Retailer 7$2,483 NZD
Retailer 3$2,503 NZD
Retailer 9$5,520 NZD
Retailer 2$6,047 NZD
Retailer 10$6,736 NZD
Retailer 11$6,930 NZD
Do Amore Diamonds$10,628 NZD

9 data points across 11 retailers

11 retailers$1,608 NZD to $10,628 NZD

A
Cheapest Retailer
-
$1,608 NZD
$905 USD
A
Retailer 2
-
$1,911 NZD
HK$8,400 HKD
View
A
Retailer 3
-
$2,031 NZD
$1,143 USD
View
B+
Retailer 4
-
$2,259 NZD
$1,271 USD
View
A
Retailer 5
-
$2,483 NZD
$1,397 USD
View
Retailer 6
-
$5,207 NZD
$2,930 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$5,520 NZD
SGD 4,197 SGD
View
B
Retailer 8
-
$6,047 NZD
£2,679 GBP
View
B
Retailer 9
-
$6,736 NZD
$3,790 USD
View
B
Retailer 10
-
$6,930 NZD
$3,899 USD
View
Most Expensive
B
Do Amore Diamonds
27-D40AF3ECA · Oct 31
$10,628 NZD
$5,980 USD
View
10 more retailers have this diamond
Prices start from $1,608 NZDSave up to $9,020 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 Cushion
$1,608 NZD