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Cushion|Lab Grown|IGI

4.05ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG660415012

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG660415012

Diamond specifications and retailer prices

From $2,515 SGD
$1,962 USD
As of October 28, 2026
Save $10,959 SGD (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $15,424 SGD at Brilliant Earth · As of October 21, 2026
View at Brilliant Earth

About this 4.05ct lab-grown cushion diamond

This 4.05ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG660415012 or 660415012. Listed at 20 retailers as of October 28, 2026, with a 436% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.05
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660415012
Dimensions10.44 × 8.68 × 5.72 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizePointed
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
10.44 mm8.68 mm4.05 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660415012
Side View
Table 60.0%Crown 34.5°Girdle: MED-STKPavilion 36.3°Culet: NoneDepth 65.9%

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 28
Current: $15,424 SGD|Low: $2,194 SGD|High: $15,424 SGD|Avg: $5,763 SGD
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
October 29, 2026
Retailer 3$2,515 SGD
Retailer 14$2,583 SGD
Retailer 7$2,592 SGD
Retailer 10$3,132 SGD
Retailer 4$3,134 SGD
Retailer 13$3,535 SGD
Retailer 19$3,763 SGD
Retailer 15$3,955 SGD
Retailer 9$5,197 SGD
Retailer 16$5,319 SGD
Retailer 17$5,384 SGD
Retailer 5$6,511 SGD
Retailer 11$6,566 SGD
Retailer 18$6,994 SGD
Retailer 2$7,203 SGD
Retailer 20$8,324 SGD
Retailer 8$8,823 SGD
Retailer 12$9,053 SGD
Retailer 6$13,475 SGD
Brilliant Earth$15,424 SGD

36 data points across 20 retailers

20 retailers$2,515 SGD to $13,475 SGD

A
Cheapest Retailer
-
$2,515 SGD
$1,962 USD
Final sale: no returns
A
Retailer 2
-
$2,583 SGD
$2,015 USD
View
A
Retailer 3
-
$2,592 SGD
$2,022 USD
View
A
Retailer 4
-
$3,132 SGD
$2,443 USD
View
A
Retailer 5
-
$3,134 SGD
HK$19,100 HKD
View
A
Retailer 6
-
$3,535 SGD
£2,171 GBP
View
B+
Retailer 7
-
$3,763 SGD
$2,935 USD
View
B+
Retailer 8
-
$3,955 SGD
€2,938 EUR
View
B+
Retailer 9
-
$5,197 SGD
£3,192 GBP
View
B+
Retailer 10
-
$5,319 SGD
ZAR 67,028 ZAR
View
B+
Retailer 11
-
$5,384 SGD
A$6,460 AUD
View
B
Retailer 12
-
$6,511 SGD
$5,079 USD
View
B
Retailer 13
-
$6,566 SGD
$5,122 USD
View
B+
Retailer 14
-
$6,994 SGD
$5,455 USD
View
Price last confirmed 10 days ago
B+
Retailer 15
-
$7,203 SGD
£4,424 GBP
View
B
Retailer 16
-
$8,324 SGD
A$9,988 AUD
View
Price last confirmed 24 days ago
B
Retailer 17
-
$8,823 SGD
$6,882 USD
View
B
Retailer 18
-
$9,053 SGD
View
B
Retailer 19
-
$13,475 SGD
$10,510 USD
View
Most Expensive
B
Brilliant Earth
12545308Y · Oct 21
$15,424 SGD
$12,030 USD
View
Price last confirmed 7 days ago
19 more retailers have this diamond
Prices start from $2,515 SGDSave up to $10,959 SGD

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
4.05ct Cushion
$2,515 SGD