Cushion|Lab Grown|IGI

1.28ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG840622206

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840622206

Diamond specifications and retailer prices

From $195 USD
As of November 1, 2026
Save $1,475 USD (88%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,670 USD at Do Amore Diamonds · As of October 31, 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG840622206 or 840622206. Listed at 10 retailers as of October 31, 2026, with prices from $195 to $1,670, a $1,475 spread on the same certified stone. Do Amore Diamonds lists it at $1,670. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840622206
Dimensions8.08 × 5.34 × 3.65 mm
L/W Ratio1.51
Girdle conditionFaceted
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
8.08 mm5.34 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840622206
Side View
Table 62.0%Crown 32.6°Girdle: STK-THKPavilion 38.5°Culet: NoneDepth 68.4%

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: Nov 1
Current: $1,670 USD|Low: $195 USD|High: $1,670 USD|Avg: $556 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 8$195 USD
Retailer 2$253 USD
Retailer 4$285 USD
Retailer 9$294 USD
Retailer 5$395 USD
Retailer 6$467 USD
Retailer 7$700 USD
Retailer 10$777 USD
Retailer 3$1,115 USD
Do Amore Diamonds$1,670 USD

4 data points across 10 retailers

10 retailers$195 USD to $1,670 USD

A
Cheapest Retailer
-
$195 USD
Final sale: no returns
A
Retailer 2
-
$253 USD
View
A
Retailer 3
-
$285 USD
£225 GBP
View
B+
Retailer 4
-
$294 USD
View
A
Retailer 5
-
$395 USD
€376 EUR
View
A
Retailer 6
-
$467 USD
View
B+
Retailer 7
-
$700 USD
View
B+
Retailer 8
-
$777 USD
View
B
Retailer 9
-
$1,115 USD
£878 GBP
View
Most Expensive
B
Do Amore Diamonds
27-2497E40CA · Oct 31
$1,670 USD
View
9 more retailers have this diamond
Prices start from $195 USDSave up to $1,475 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
$195 USD