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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 $627 USD
HK$4,900 HKD
As of November 1, 2026
Save $2,723 USD (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,350 USD 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 $627 to $3,350, a $2,723 spread on the same certified stone. Brilliant Earth lists it at $3,350. 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
Color
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: Nov 1
Current: $874 USD|Low: $525 USD|High: $2,661 USD|Avg: $1,457 USD|-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$525 USD
Retailer 13$627 USD
Retailer 17$650 USD
Retailer 1$874 USD
Retailer 16$880 USD
Retailer 7$907 USD
Retailer 8$911 USD
Retailer 18$960 USD
Retailer 5$1,239 USD
Retailer 2$1,253 USD
Retailer 12$1,337 USD
Retailer 3$1,356 USD
Retailer 15$1,826 USD
Retailer 11$1,901 USD
Retailer 9$2,054 USD
Retailer 19$2,141 USD
Retailer 4$2,178 USD
Retailer 14$2,502 USD
Retailer 10$2,610 USD

26 data points across 19 retailers

20 retailers$627 USD to $3,350 USD

A
Cheapest Retailer
-
$627 USD
HK$4,900 HKD
A
Retailer 2
-
$650 USD
£512 GBP
View
A
Retailer 3
-
$874 USD
€832 EUR
View
A
Retailer 4
-
$880 USD
View
A
Retailer 5
-
$907 USD
View
B+
Retailer 6
-
$911 USD
View
A
Retailer 7
-
$960 USD
£756 GBP
View
Retailer 8
-
$1,239 USD
A$1,906 AUD
View
Price last confirmed 13 days ago
Retailer 9
-
$1,253 USD
ZAR 20,237 ZAR
View
Price last confirmed 8 days ago
A
Retailer 10
-
$1,337 USD
View
A
Retailer 11
-
$1,356 USD
View
A
Retailer 12
-
$1,826 USD
SGD 2,468 SGD
View
Retailer 13
-
$1,844 USD
£1,452 GBP
View
Price last confirmed 24 days ago
A
Retailer 14
-
$1,901 USD
View
Retailer 15
-
$2,054 USD
View
Price last confirmed 7 days ago
B+
Retailer 16
-
$2,141 USD
£1,686 GBP
View
B+
Retailer 17
-
$2,178 USD
View
B+
Retailer 18
-
$2,502 USD
View
Retailer 19
-
$2,610 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21274048A · Oct 31
$3,350 USD
View
19 more retailers have this diamond
Prices start from $627 USDSave up to $2,723 USD

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
$627 USD