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Cushion|Lab Grown|IGI

1.51ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG807689860

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG807689860

Diamond specifications and retailer prices

From £182 GBP
$244 USD
As of October 30, 2026
Save £1,012 GBP (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,194 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG807689860 or 807689860. Listed at 19 retailers as of October 30, 2026, with prices from £182 to £1,194, a £1,012 spread on the same certified stone. Brilliant Earth lists it at £1,194. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle31.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG807689860
Dimensions7.80 × 5.81 × 3.90 mm
L/W Ratio1.34
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
7.80 mm5.81 mm1.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807689860
Side View
Table 59.0%Crown 32.3°Girdle: STK-THKPavilion 31.6°Culet: NoneDepth 67.1%

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 30
Current: £1,194 GBP|Low: £182 GBP|High: £1,523 GBP|Avg: £559 GBP|-21.6%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 18
October 31, 2026
Retailer 5£182 GBP
Retailer 6£202 GBP
Retailer 7£226 GBP
Retailer 13£337 GBP
Retailer 15£347 GBP
Retailer 11£372 GBP
Retailer 8£386 GBP
Retailer 9£392 GBP
Retailer 16£472 GBP
Retailer 12£528 GBP
Retailer 4£651 GBP
Retailer 10£689 GBP
Retailer 2£737 GBP
Retailer 14£747 GBP
Retailer 17£814 GBP
Retailer 18£825 GBP
Retailer 3£935 GBP
Brilliant Earth£1,194 GBP

41 data points across 18 retailers

19 retailers£182 GBP to £1,194 GBP

A
Cheapest Retailer
-
£182 GBP
$244 USD
Final sale: no returns
A
Retailer 2
-
£202 GBP
$271 USD
View
Retailer 3
-
£226 GBP
View
Price last confirmed 14 days ago
B+
Retailer 4
-
£270 GBP
$362 USD
View
A
Retailer 5
-
£337 GBP
€430 EUR
View
A
Retailer 6
-
£347 GBP
ZAR 7,516 ZAR
View
A
Retailer 7
-
£372 GBP
View
A
Retailer 8
-
£386 GBP
$517 USD
View
A
Retailer 9
-
£392 GBP
$525 USD
View
A
Retailer 10
-
£472 GBP
A$973 AUD
View
B+
Retailer 11
-
£528 GBP
$707 USD
View
B+
Retailer 12
-
£651 GBP
SGD 1,179 SGD
View
B+
Retailer 13
-
£689 GBP
$923 USD
View
B+
Retailer 14
-
£737 GBP
$987 USD
View
B+
Retailer 15
-
£747 GBP
A$1,540 AUD
View
B+
Retailer 16
-
£814 GBP
View
Retailer 17
-
£825 GBP
$1,105 USD
View
Price last confirmed 12 days ago
B
Retailer 18
-
£935 GBP
$1,252 USD
View
Most Expensive
B
Brilliant Earth
22184109A · Oct 30
£1,194 GBP
$1,600 USD
View
18 more retailers have this diamond
Prices start from £182 GBPSave up to £1,012 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
1.51ct Cushion
£182 GBP