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Cushion|Lab Grown|IGI

1.28ct G VS1 Cushion Lab Grown Diamond

GD • G/VS1 • IGI LG617452452

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG617452452

Diamond specifications and retailer prices

From $191 USD
As of October 28, 2026
Save $1,359 USD (88%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,550 USD at Do Amore Diamonds · As of October 27, 2026
View at Do Amore Diamonds

About this 1.28ct lab-grown cushion diamond

This 1.28ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG617452452 or 617452452. Listed at 7 retailers as of October 27, 2026, with prices from $191 to $1,550, a $1,359 spread on the same certified stone. Do Amore Diamonds lists it at $1,550. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.28
Carat
G
Color
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617452452
Dimensions6.26 × 6.26 × 4.24 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.26 mm6.26 mm1.28 ctG / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617452452
Side View
Table 61.0%Crown 34.6°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 67.7%

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 28
Current: $1,550 USD|Low: $139 USD|High: $1,670 USD|Avg: $746 USD|-7.2%
Do Amore Diamonds
Retailer 2
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Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
October 26, 2026
Retailer 11$191 USD
Retailer 9$364 USD
Retailer 12$407 USD
Retailer 3$426 USD
Retailer 14$475 USD
Retailer 5$524 USD
Retailer 2$541 USD
Retailer 4$624 USD
Retailer 6$723 USD
Retailer 13$947 USD
Retailer 15$960 USD
Retailer 7$1,036 USD
Retailer 8$1,038 USD
Retailer 10$1,380 USD
Do Amore Diamonds$1,550 USD

15 data points across 15 retailers

7 retailers$191 USD to $1,550 USD

A
Cheapest Retailer
-
$191 USD
Final sale: no returns
B+
Retailer 2
-
$364 USD
View
B+
Retailer 3
-
$541 USD
A$832 AUD
View
B
Retailer 4
-
$960 USD
View
B
Retailer 5
-
$1,038 USD
£817 GBP
View
C
Retailer 6
-
$1,380 USD
View
Most Expensive
B
Do Amore Diamonds
27-F2DCEF05C · Oct 27
$1,550 USD
View
6 more retailers have this diamond
Prices start from $191 USDSave up to $1,359 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
1.28ct Cushion
$191 USD