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Cushion|Lab Grown|IGI

1.09ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG831608891

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG831608891

Diamond specifications and retailer prices

From $218 USD
HK$1,700 HKD
As of November 1, 2026
Save $710 USD (77%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,065 USD at Reve Diamonds · As of October 25, 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 top-tier cut grade and certified by IGI LG831608891 or 831608891. Listed at 15 retailers as of October 26, 2026, with a 326% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.6°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831608891
Dimensions6.84 × 5.00 × 3.50 mm
L/W Ratio1.37
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.84 mm5.00 mm1.09 ctF / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG831608891
Side View
Table 64.0%Crown 37.6°Girdle: MED-STKPavilion 31.9°Culet: NoneDepth 70.0%

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: $331 USD|Low: $178 USD|High: $1,070 USD|Avg: $483 USD|+0.6%
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
Reve Diamonds
October 31, 2026
Retailer 6$178 USD
Retailer 12$218 USD
Retailer 3$238 USD
Retailer 1$331 USD
Retailer 2$335 USD
Retailer 14$346 USD
Retailer 4$359 USD
Retailer 5$359 USD
Retailer 16$425 USD
Retailer 9$509 USD
Retailer 8$530 USD
Retailer 13$538 USD
Retailer 10$600 USD
Retailer 11$635 USD
Retailer 7$692 USD
Retailer 15$927 USD
Reve Diamonds$1,065 USD

43 data points across 17 retailers

15 retailers$218 USD to $927 USD

A
Cheapest Retailer
-
$218 USD
HK$1,700 HKD
A
Retailer 2
-
$331 USD
€315 EUR
View
Retailer 3
-
$335 USD
ZAR 5,408 ZAR
View
Price last confirmed 10 days ago
A
Retailer 4
-
$346 USD
£273 GBP
View
Retailer 5
-
$359 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$359 USD
View
Retailer 7
-
$425 USD
£335 GBP
View
Price last confirmed 7 days ago
B+
Retailer 8
-
$509 USD
View
Retailer 9
-
$530 USD
View
Price last confirmed 14 days ago
B+
Retailer 10
-
$538 USD
SGD 727 SGD
View
B+
Retailer 11
-
$600 USD
View
B
Retailer 12
-
$635 USD
View
B+
Retailer 13
-
$692 USD
View
B
Retailer 14
-
$927 USD
£730 GBP
View
Most Expensive
Reve Diamonds
2BBB31FC1 · Oct 25
$1,065 USD
View
Price last confirmed 8 days ago
14 more retailers have this diamond
Prices start from $218 USDSave up to $710 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
$218 USD