Princess|Lab Grown|IGI

1.28ct E VS1 Princess Lab Grown Diamond

GD • E/VS1 • IGI LG702577493

Shape and cutting style on the report: Princess cut

Certificate IGI LG702577493

Diamond specifications and retailer prices

From £177 GBP
$237 USD
As of October 30, 2026
Save £801 GBP (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £978 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.28ct lab-grown princess diamond

This 1.28ct lab-grown princess sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG702577493 or 702577493. Listed at 21 retailers as of October 30, 2026, with prices from £177 to £978, a £801 spread on the same certified stone. Reve Diamonds lists it at £978. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.28
Carat
E
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG702577493
Dimensions5.83 × 5.82 × 4.25 mm
L/W Ratio1.00
Culet sizePointed
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
5.83 mm5.82 mm1.28 ctE / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG702577493
Side View
Table 70.0%Crown 44°Girdle: MED-STKPavilion 38.3°Culet: NoneDepth 73.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £411 GBP|Low: £169 GBP|High: £978 GBP|Avg: £447 GBP|+1.8%
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Retailer 17
Reve Diamonds
October 31, 2026
Retailer 2£177 GBP
Retailer 4£198 GBP
Retailer 3£219 GBP
Retailer 8£219 GBP
Retailer 10£275 GBP
Retailer 7£295 GBP
Retailer 11£353 GBP
Retailer 6£369 GBP
Retailer 14£376 GBP
Retailer 9£400 GBP
Retailer 1£411 GBP
Retailer 15£534 GBP
Retailer 16£537 GBP
Retailer 13£619 GBP
Retailer 5£705 GBP
Retailer 17£707 GBP
Retailer 12£882 GBP
Reve Diamonds£978 GBP

37 data points across 18 retailers

21 retailers£177 GBP to £978 GBP

A
Cheapest Retailer
-
£177 GBP
$237 USD
A
Retailer 2
-
£198 GBP
$265 USD
View
Final sale: no returns
A
Retailer 3
-
£205 GBP
$275 USD
View
A
Retailer 4
-
£219 GBP
$294 USD
View
A
Retailer 5
-
£219 GBP
$294 USD
View
A
Retailer 6
-
£275 GBP
View
A
Retailer 7
-
£295 GBP
$395 USD
View
B+
Retailer 8
-
£353 GBP
€450 EUR
View
B+
Retailer 9
-
£369 GBP
$494 USD
View
B+
Retailer 10
-
£376 GBP
ZAR 8,147 ZAR
View
B+
Retailer 11
-
£400 GBP
$536 USD
View
B+
Retailer 12
-
£411 GBP
View
B+
Retailer 13
-
£534 GBP
A$1,101 AUD
View
Retailer 14
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£537 GBP
$720 USD
View
Price last confirmed 10 days ago
B
Retailer 15
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£619 GBP
A$1,276 AUD
View
B
Retailer 16
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£705 GBP
$944 USD
View
B
Retailer 17
-
£707 GBP
$947 USD
View
B
Retailer 18
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£743 GBP
$996 USD
View
B
Retailer 19
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£761 GBP
$1,020 USD
View
B
Retailer 20
-
£882 GBP
View
Most Expensive
B
Reve Diamonds
4F66FF42D · Oct 30
£978 GBP
$1,311 USD
View
20 more retailers have this diamond
Prices start from £177 GBPSave up to £801 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
1.28ct Princess
£177 GBP