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Cushion|Lab Grown|IGI

4.05ct H VS1 Cushion Lab Grown Diamond

ID • H/VS1 • IGI LG828607757

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG828607757

Diamond specifications and retailer prices

From $2,988 AUD
HK$16,300 HKD
As of November 3, 2026
Save $5,657 AUD (65%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $8,644 AUD at Michael Trio · As of November 3, 2026
View at Michael Trio

About this 4.05ct lab-grown cushion diamond

This 4.05ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG828607757 or 828607757. Listed at 4 retailers as of November 3, 2026, with prices from $2,988 to $8,644, a $5,657 spread on the same certified stone. Michael Trio lists it at $8,644. 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
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828607757
Dimensions10.98 × 8.18 × 5.48 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.98 mm8.18 mm4.05 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828607757
Side View
Table 49.0%Crown 39.6°Girdle: STK-THKPavilion 38.2°Culet: LargeDepth 67.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $8,644 AUD|Low: $2,378 AUD|High: $11,272 AUD|Avg: $5,483 AUD
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 4$2,947 AUD
Retailer 3$2,988 AUD
Retailer 7$3,694 AUD
Retailer 2$6,061 AUD
Retailer 6$8,148 AUD
Michael Trio$8,644 AUD
Retailer 5$11,272 AUD

9 data points across 7 retailers

4 retailers$2,988 AUD to $8,644 AUD

B+
Cheapest Retailer
-
$2,988 AUD
HK$16,300 HKD
B
Retailer 2
-
$6,061 AUD
ZAR 68,380 ZAR
View
B
Retailer 3
-
$8,148 AUD
$5,690 USD
View
Most Expensive
B
Michael Trio
1815843390 · Nov 3
$8,644 AUD
SGD 8,158 SGD
View
3 more retailers have this diamond
Prices start from $2,988 AUDSave up to $5,657 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.

B+
4.05ct Cushion
$2,988 AUD