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Cushion|Lab Grown|IGI

1.51ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG687559370

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG687559370

Diamond specifications and retailer prices

From €254 EUR
$284 USD
As of November 1, 2026
Save €1,117 EUR (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,371 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG687559370 or 687559370. Listed at 13 retailers as of October 31, 2026, with prices from €254 to €1,371, a €1,117 spread on the same certified stone. Taylor and Hart lists it at €1,371. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687559370
Dimensions6.73 × 6.65 × 4.53 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.73 mm6.65 mm1.51 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687559370
Side View
Table 57.0%Crown 34.1°Girdle: MED-THKPavilion 40.8°Culet: NoneDepth 68.1%

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: Nov 1
Current: €537 EUR|Low: €182 EUR|High: €1,719 EUR|Avg: €807 EUR|+4.6%
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
Taylor and Hart
November 2, 2026
Retailer 2€254 EUR
Retailer 5€441 EUR
Retailer 11€443 EUR
Retailer 13€471 EUR
Retailer 6€486 EUR
Retailer 8€506 EUR
Retailer 1€537 EUR
Retailer 10€656 EUR
Retailer 4€1,023 EUR
Retailer 3€1,082 EUR
Retailer 12€1,108 EUR
Retailer 7€1,129 EUR
Retailer 9€1,369 EUR
Taylor and Hart€1,371 EUR

43 data points across 14 retailers

13 retailers€254 EUR to €1,371 EUR

A
Cheapest Retailer
-
€254 EUR
$284 USD
Final sale: no returns
A
Retailer 2
-
€441 EUR
$493 USD
View
A
Retailer 3
-
€443 EUR
$495 USD
View
A
Retailer 4
-
€471 EUR
$526 USD
View
A
Retailer 5
-
€486 EUR
ZAR 8,775 ZAR
View
A
Retailer 6
-
€506 EUR
View
A
Retailer 7
-
€537 EUR
£472 GBP
View
B+
Retailer 8
-
€656 EUR
A$1,128 AUD
View
B
Retailer 9
-
€1,082 EUR
SGD 1,634 SGD
View
B
Retailer 10
-
€1,108 EUR
$1,238 USD
View
B
Retailer 11
-
€1,129 EUR
£993 GBP
View
B
Retailer 12
-
€1,369 EUR
$1,530 USD
View
Most Expensive
B
Taylor and Hart
I6J3AV6 · Oct 31
€1,371 EUR
$1,531 USD
View
12 more retailers have this diamond
Prices start from €254 EURSave up to €1,117 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
1.51ct Cushion
€254 EUR