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Cushion|Lab Grown|IGI

3.75ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG830643203

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG830643203

Diamond specifications and retailer prices

From $893 AUD
HK$4,900 HKD
As of October 31, 2026
Save $3,876 AUD (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,769 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.75ct lab-grown cushion diamond

This 3.75ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG830643203 or 830643203. Listed at 20 retailers as of October 31, 2026, with prices from $893 to $4,769, a $3,876 spread on the same certified stone. Brilliant Earth lists it at $4,769. 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

3.75
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle31.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830643203
Dimensions10.85 × 8.23 × 5.03 mm
L/W Ratio1.32
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.85 mm8.23 mm3.75 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830643203
Side View
Table 60.0%Crown 34.3°Girdle: MED-THKPavilion 31.1°Culet: NoneDepth 61.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,244 AUD|Low: $747 AUD|High: $3,788 AUD|Avg: $2,074 AUD|-4.5%
Retailer 1
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
October 31, 2026
Retailer 6$747 AUD
Retailer 13$893 AUD
Retailer 17$925 AUD
Retailer 1$1,244 AUD
Retailer 16$1,253 AUD
Retailer 7$1,291 AUD
Retailer 8$1,297 AUD
Retailer 18$1,366 AUD
Retailer 5$1,764 AUD
Retailer 2$1,783 AUD
Retailer 12$1,903 AUD
Retailer 3$1,930 AUD
Retailer 15$2,600 AUD
Retailer 11$2,707 AUD
Retailer 9$2,924 AUD
Retailer 19$3,048 AUD
Retailer 4$3,101 AUD
Retailer 14$3,562 AUD
Retailer 10$3,716 AUD

26 data points across 19 retailers

20 retailers$893 AUD to $4,769 AUD

A
Cheapest Retailer
-
$893 AUD
HK$4,900 HKD
A
Retailer 2
-
$925 AUD
£512 GBP
View
A
Retailer 3
-
$1,244 AUD
€832 EUR
View
A
Retailer 4
-
$1,253 AUD
$880 USD
View
A
Retailer 5
-
$1,291 AUD
$907 USD
View
B+
Retailer 6
-
$1,297 AUD
$911 USD
View
A
Retailer 7
-
$1,366 AUD
£756 GBP
View
Retailer 8
-
$1,764 AUD
View
Price last confirmed 12 days ago
Retailer 9
-
$1,783 AUD
ZAR 20,237 ZAR
View
Price last confirmed 8 days ago
A
Retailer 10
-
$1,903 AUD
$1,337 USD
View
A
Retailer 11
-
$1,930 AUD
$1,356 USD
View
A
Retailer 12
-
$2,600 AUD
SGD 2,468 SGD
View
Retailer 13
-
$2,625 AUD
£1,452 GBP
View
Price last confirmed 23 days ago
A
Retailer 14
-
$2,707 AUD
$1,901 USD
View
Retailer 15
-
$2,924 AUD
$2,054 USD
View
Price last confirmed 7 days ago
B+
Retailer 16
-
$3,048 AUD
£1,686 GBP
View
B+
Retailer 17
-
$3,101 AUD
$2,178 USD
View
B+
Retailer 18
-
$3,562 AUD
$2,502 USD
View
Retailer 19
-
$3,716 AUD
$2,610 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
21274048A · Oct 31
$4,769 AUD
$3,350 USD
View
19 more retailers have this diamond
Prices start from $893 AUDSave up to $3,876 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
3.75ct Cushion
$893 AUD