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Cushion|Lab Grown|IGI

11.59ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG821678406

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG821678406

Diamond specifications and retailer prices

From €6,335 EUR
$7,105 USD
As of November 1, 2026
Save €12,573 EUR (66%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €18,907 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 11.59ct lab-grown cushion diamond

This 11.59ct lab-grown cushion sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG821678406 or 821678406. Listed at 11 retailers as of October 31, 2026, with prices from €6,335 to €18,907, a €12,573 spread on the same certified stone. Taylor and Hart lists it at €18,907. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

11.59
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle43.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821678406
Dimensions16.80 × 10.80 × 6.81 mm
L/W Ratio1.56
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.80 mm10.80 mm11.59 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821678406
Side View
Table 63.0%Crown 35.1°Girdle: MED-STKPavilion 43.7°Culet: LargeDepth 63.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €8,176 EUR|Low: €5,283 EUR|High: €18,907 EUR|Avg: €10,235 EUR|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Taylor and Hart
November 3, 2026
Retailer 2€6,673 EUR
Retailer 4€7,253 EUR
Retailer 8€7,460 EUR
Retailer 9€7,961 EUR
Retailer 6€8,137 EUR
Retailer 1€8,176 EUR
Retailer 5€9,911 EUR
Retailer 3€10,008 EUR
Retailer 7€16,444 EUR
Taylor and Hart€18,907 EUR

39 data points across 10 retailers

11 retailers€6,335 EUR to €18,907 EUR

B+
Cheapest Retailer
-
€6,335 EUR
$7,105 USD
B+
Retailer 2
-
€6,673 EUR
£5,894 GBP
View
B
Retailer 3
-
€7,253 EUR
$8,135 USD
View
B
Retailer 4
-
€7,460 EUR
£6,588 GBP
View
B
Retailer 5
-
€7,961 EUR
$8,929 USD
View
B
Retailer 6
-
€8,137 EUR
$9,126 USD
View
B
Retailer 7
-
€8,176 EUR
ZAR 148,146 ZAR
View
B
Retailer 8
-
€9,911 EUR
$11,116 USD
View
B
Retailer 9
-
€10,008 EUR
A$17,270 AUD
View
B
Retailer 10
-
€16,444 EUR
SGD 24,924 SGD
View
Most Expensive
B
Taylor and Hart
XNGMGFI · Oct 31
€18,907 EUR
$21,207 USD
View
10 more retailers have this diamond
Prices start from €6,335 EURSave up to €12,573 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.

B+
11.59ct Cushion
€6,335 EUR