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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 HK$15,392 HKD
$1,962 USD
As of October 28, 2026
Save HK$67,060 HKD (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$94,377 HKD 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: HK$94,377 HKD|Low: HK$13,423 HKD|High: HK$94,377 HKD|Avg: HK$35,265 HKD
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 3HK$15,392 HKD
Retailer 14HK$15,808 HKD
Retailer 7HK$15,863 HKD
Retailer 10HK$19,166 HKD
Retailer 4HK$19,180 HKD
Retailer 13HK$21,629 HKD
Retailer 19HK$23,025 HKD
Retailer 15HK$24,201 HKD
Retailer 9HK$31,803 HKD
Retailer 16HK$32,550 HKD
Retailer 17HK$32,942 HKD
Retailer 5HK$39,843 HKD
Retailer 11HK$40,179 HKD
Retailer 18HK$42,795 HKD
Retailer 2HK$44,078 HKD
Retailer 20HK$50,932 HKD
Retailer 8HK$53,987 HKD
Retailer 12HK$55,395 HKD
Retailer 6HK$82,452 HKD
Brilliant EarthHK$94,377 HKD

36 data points across 20 retailers

20 retailersHK$15,392 HKD to HK$82,452 HKD

A
Cheapest Retailer
-
HK$15,392 HKD
$1,962 USD
Final sale: no returns
A
Retailer 2
-
HK$15,808 HKD
$2,015 USD
View
A
Retailer 3
-
HK$15,863 HKD
$2,022 USD
View
A
Retailer 4
-
HK$19,166 HKD
$2,443 USD
View
A
Retailer 5
-
HK$19,180 HKD
View
A
Retailer 6
-
HK$21,629 HKD
£2,171 GBP
View
B+
Retailer 7
-
HK$23,025 HKD
$2,935 USD
View
B+
Retailer 8
-
HK$24,201 HKD
€2,938 EUR
View
B+
Retailer 9
-
HK$31,803 HKD
£3,192 GBP
View
B+
Retailer 10
-
HK$32,550 HKD
ZAR 67,028 ZAR
View
B+
Retailer 11
-
HK$32,942 HKD
A$6,460 AUD
View
B
Retailer 12
-
HK$39,843 HKD
$5,079 USD
View
B
Retailer 13
-
HK$40,179 HKD
$5,122 USD
View
B+
Retailer 14
-
HK$42,795 HKD
$5,455 USD
View
Price last confirmed 10 days ago
B+
Retailer 15
-
HK$44,078 HKD
£4,424 GBP
View
B
Retailer 16
-
HK$50,932 HKD
A$9,988 AUD
View
Price last confirmed 24 days ago
B
Retailer 17
-
HK$53,987 HKD
$6,882 USD
View
B
Retailer 18
-
HK$55,395 HKD
SGD 9,542 SGD
View
B
Retailer 19
-
HK$82,452 HKD
$10,510 USD
View
Most Expensive
B
Brilliant Earth
12545308Y · Oct 21
HK$94,377 HKD
$12,030 USD
View
Price last confirmed 7 days ago
19 more retailers have this diamond
Prices start from HK$15,392 HKDSave up to HK$67,060 HKD

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
HK$15,392 HKD