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Cushion|Lab Grown|IGI

1.73ct E VVS1 Cushion Lab Grown Diamond

ID • E/VVS1 • IGI LG800619071

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG800619071

Diamond specifications and retailer prices

From £286 GBP
$381 USD
As of October 25, 2026
Save £1,396 GBP (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,682 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

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 LG800619071 or 800619071. Listed at 10 retailers as of October 25, 2026, with prices from £286 to £1,682, a £1,396 spread on the same certified stone. Brilliant Earth lists it at £1,682. 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 angle26.5°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800619071
Dimensions8.30 × 6.08 × 4.17 mm
L/W Ratio1.37
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
8.30 mm6.08 mm1.73 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800619071
Side View
Table 57.0%Crown 26.5°Girdle: MED-THKPavilion 36.3°Culet: NoneDepth 68.6%

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: Oct 25
Current: £1,682 GBP|Low: £286 GBP|High: £1,720 GBP|Avg: £809 GBP|-2.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 7£286 GBP
Retailer 12£414 GBP
Retailer 8£467 GBP
Retailer 9£469 GBP
Retailer 6£542 GBP
Retailer 2£566 GBP
Retailer 4£614 GBP
Retailer 11£1,099 GBP
Retailer 10£1,135 GBP
Retailer 5£1,271 GBP
Retailer 3£1,288 GBP
Brilliant Earth£1,682 GBP

30 data points across 12 retailers

10 retailers£286 GBP to £1,682 GBP

A
Cheapest Retailer
-
£286 GBP
$381 USD
A
Retailer 2
-
£467 GBP
$622 USD
View
A
Retailer 3
-
£469 GBP
$625 USD
View
A
Retailer 4
-
£542 GBP
ZAR 11,669 ZAR
View
B+
Retailer 5
-
£566 GBP
View
B
Retailer 6
-
£1,099 GBP
$1,464 USD
View
B
Retailer 7
-
£1,135 GBP
$1,511 USD
View
B
Retailer 8
-
£1,271 GBP
View
Retailer 9
-
£1,288 GBP
$1,716 USD
View
Price last confirmed 50 days ago
Most Expensive
B
Brilliant Earth
21523674Y · Oct 28
£1,682 GBP
$2,240 USD
View
9 more retailers have this diamond
Prices start from £286 GBPSave up to £1,396 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
£286 GBP