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Cushion|Lab Grown|IGI

1.21ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG817695911

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG817695911

Diamond specifications and retailer prices

From €199 EUR
$223 USD
As of October 25, 2026
Save €875 EUR (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,073 EUR at Flawless Fine Jewelry · As of October 31, 2026
View at Flawless Fine Jewelry

About this 1.21ct lab-grown cushion diamond

This 1.21ct 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 LG817695911 or 817695911. Listed at 16 retailers as of October 25, 2026, with prices from €199 to €1,073, a €875 spread on the same certified stone. Flawless Fine Jewelry lists it at €1,073. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817695911
Dimensions6.14 × 6.13 × 4.10 mm
L/W Ratio1.00
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
6.14 mm6.13 mm1.21 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817695911
Side View
Table 63.0%Crown 36.3°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 66.8%

Caratlytics Score

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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 25
Current: €1,073 EUR|Low: €197 EUR|High: €1,073 EUR|Avg: €503 EUR|+5.3%
Flawless Fine Jewelry
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
October 31, 2026
Retailer 8€199 EUR
Retailer 14€214 EUR
Retailer 5€341 EUR
Retailer 2€346 EUR
Retailer 15€364 EUR
Retailer 9€375 EUR
Retailer 11€389 EUR
Retailer 7€485 EUR
Retailer 12€493 EUR
Retailer 10€534 EUR
Retailer 6€580 EUR
Retailer 4€584 EUR
Retailer 13€597 EUR
Retailer 16€712 EUR
Retailer 3€934 EUR
Flawless Fine Jewelry€1,073 EUR

39 data points across 16 retailers

16 retailers€199 EUR to €1,073 EUR

A
Cheapest Retailer
-
€199 EUR
$223 USD
A
Retailer 2
-
€214 EUR
$240 USD
View
Final sale: no returns
A
Retailer 3
-
€341 EUR
ZAR 6,184 ZAR
View
A
Retailer 4
-
€346 EUR
View
A
Retailer 5
-
€364 EUR
$408 USD
View
A
Retailer 6
-
€375 EUR
£331 GBP
View
A
Retailer 7
-
€389 EUR
$436 USD
View
A
Retailer 8
-
€485 EUR
A$837 AUD
View
B+
Retailer 9
-
€493 EUR
$553 USD
View
B+
Retailer 10
-
€534 EUR
$599 USD
View
B+
Retailer 11
-
€580 EUR
A$1,001 AUD
View
B+
Retailer 12
-
€584 EUR
$655 USD
View
B+
Retailer 13
-
€597 EUR
$670 USD
View
B+
Retailer 14
-
€712 EUR
$799 USD
View
B
Retailer 15
-
€934 EUR
£825 GBP
View
Most Expensive
B
Flawless Fine Jewelry
5A5E17ACD · Oct 31
€1,073 EUR
£948 GBP
View
15 more retailers have this diamond
Prices start from €199 EURSave up to €875 EUR

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
1.21ct Cushion
€199 EUR