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Cushion|Lab Grown|IGI

1.09ct F VS1 Cushion Lab Grown Diamond

VG • F/VS1 • IGI LG623489891

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG623489891

Diamond specifications and retailer prices

From $178 USD
As of November 1, 2026
Save $744 USD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,063 USD at Reve Diamonds · As of October 11, 2026
View at Reve Diamonds

About this 1.09ct lab-grown cushion diamond

This 1.09ct lab-grown cushion sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG623489891 or 623489891. Listed at 16 retailers as of November 1, 2026, with a 418% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.09
Carat
F
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.8°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623489891
Dimensions6.87 × 5.47 × 3.78 mm
L/W Ratio1.26
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
6.87 mm5.47 mm1.09 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623489891
Side View
Table 67.0%Crown 30.8°Girdle: MED-THKPavilion 41.6°Culet: NoneDepth 69.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $236 USD|Low: $178 USD|High: $1,063 USD|Avg: $490 USD|-1.3%
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
Reve Diamonds
November 2, 2026
Retailer 2$178 USD
Retailer 15$197 USD
Retailer 1$236 USD
Retailer 10$340 USD
Retailer 8$347 USD
Retailer 3$357 USD
Retailer 7$359 USD
Retailer 12$360 USD
Retailer 14$374 USD
Retailer 9$480 USD
Retailer 5$518 USD
Retailer 4$530 USD
Retailer 13$650 USD
Retailer 6$689 USD
Retailer 11$922 USD
Reve Diamonds$1,063 USD

35 data points across 16 retailers

16 retailers$178 USD to $922 USD

A
Cheapest Retailer
-
$178 USD
Final sale: no returns
Retailer 2
-
$197 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
$236 USD
£186 GBP
View
A
Retailer 4
-
$340 USD
ZAR 5,495 ZAR
View
A
Retailer 5
-
$347 USD
£273 GBP
View
A
Retailer 6
-
$357 USD
View
A
Retailer 7
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$359 USD
View
A
Retailer 8
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$360 USD
€343 EUR
View
A
Retailer 9
-
$374 USD
£295 GBP
View
B+
Retailer 10
-
$480 USD
A$739 AUD
View
B+
Retailer 11
-
$518 USD
View
B+
Retailer 12
-
$530 USD
View
B+
Retailer 13
-
$650 USD
View
B
Retailer 14
-
$689 USD
View
B
Retailer 15
-
$922 USD
£726 GBP
View
Most Expensive
Reve Diamonds
3C55B7013 · Oct 11
$1,063 USD
View
Price last confirmed 22 days ago
15 more retailers have this diamond
Prices start from $178 USDSave up to $744 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
1.09ct Cushion
$178 USD