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Cushion|Lab Grown|IGI

1.73ct E VVS1 Cushion Lab Grown Diamond

ID • E/VVS1 • IGI LG717559048

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

Certificate IGI LG717559048

Diamond specifications and retailer prices

From £299 GBP
$398 USD
As of October 28, 2026
Save £1,599 GBP (84%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,898 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.73ct lab-grown cushion diamond

This 1.73ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG717559048 or 717559048. Listed at 22 retailers as of October 27, 2026, with prices from £299 to £1,898, a £1,599 spread on the same certified stone. Queensmith lists it at £1,898. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.73
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.2°
Pavilion angle31.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG717559048
Dimensions6.90 × 6.69 × 4.29 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.90 mm6.69 mm1.73 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG717559048
Side View
Table 60.0%Crown 38.2°Girdle: STK-THKPavilion 31.6°Culet: NoneDepth 64.1%

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: Oct 28
Current: £566 GBP|Low: £285 GBP|High: £1,907 GBP|Avg: £785 GBP|-2.6%
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
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Retailer 18
October 29, 2026
Retailer 14£299 GBP
Retailer 10£315 GBP
Retailer 12£336 GBP
Retailer 17£421 GBP
Retailer 9£424 GBP
Retailer 11£504 GBP
Retailer 15£542 GBP
Retailer 1£566 GBP
Retailer 5£571 GBP
Retailer 7£612 GBP
Retailer 18£740 GBP
Retailer 4£785 GBP
Retailer 8£1,046 GBP
Retailer 6£1,192 GBP
Retailer 2£1,225 GBP
Retailer 16£1,266 GBP
Retailer 3£1,359 GBP
Retailer 13£1,855 GBP

28 data points across 18 retailers

22 retailers£299 GBP to £1,898 GBP

A
Cheapest Retailer
-
£299 GBP
$398 USD
Final sale: no returns
A
Retailer 2
-
£315 GBP
$420 USD
View
A
Retailer 3
-
£336 GBP
View
A
Retailer 4
-
£421 GBP
$560 USD
View
A
Retailer 5
-
£424 GBP
$565 USD
View
A
Retailer 6
-
£504 GBP
€639 EUR
View
A
Retailer 7
-
£542 GBP
ZAR 11,662 ZAR
View
A
Retailer 8
-
£566 GBP
View
A
Retailer 9
-
£571 GBP
$760 USD
View
A
Retailer 10
-
£612 GBP
$815 USD
View
B+
Retailer 11
-
£740 GBP
A$1,517 AUD
View
B+
Retailer 12
-
£767 GBP
A$1,572 AUD
View
Price last confirmed 118 days ago
B+
Retailer 13
-
£785 GBP
$1,046 USD
View
B
Retailer 14
-
£1,046 GBP
$1,393 USD
View
B
Retailer 15
-
£1,087 GBP
$1,448 USD
View
B
Retailer 16
-
£1,192 GBP
$1,588 USD
View
B
Retailer 17
-
£1,225 GBP
View
B
Retailer 18
-
£1,266 GBP
View
B
Retailer 19
-
£1,359 GBP
$1,810 USD
View
Price last confirmed 11 days ago
B
Retailer 20
-
£1,855 GBP
$2,470 USD
View
B
Retailer 21
-
£1,862 GBP
$2,480 USD
View
Most Expensive
B
Queensmith
LG717559048 · Oct 27
£1,898 GBP
View
21 more retailers have this diamond
Prices start from £299 GBPSave up to £1,599 GBP

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
1.73ct Cushion
£299 GBP