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Radiant|Lab Grown|IGI

1.28ct E VVS1 Radiant Lab Grown Diamond

VG • E/VVS1 • IGI LG801643283

Certificate IGI LG801643283

Diamond specifications and retailer prices

From £831 GBP
$1,106 USD
As of October 29, 2026
Save £326 GBP (28%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,156 GBP at Zales · As of October 28, 2026
View at Zales

About this 1.28ct lab-grown radiant diamond

This 1.28ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG801643283 or 801643283. Listed at 4 retailers as of October 28, 2026, with prices from £831 to £1,156, a £326 spread on the same certified stone. Zales lists it at £1,156. 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
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG801643283
Dimensions7.68 × 5.56 × 3.77 mm
L/W Ratio1.38
Top View
7.68 mm5.56 mm1.28 ctE / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801643283
Side View
Table 60.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 67.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £984 GBP|Low: £831 GBP|High: £1,254 GBP|Avg: £1,066 GBP|-21.6%
Retailer 1
Retailer 2
Retailer 3
Zales
September 28, 2026
Retailer 2£831 GBP
Retailer 1£984 GBP
Retailer 3£1,156 GBP
Zales£1,156 GBP

2 data points across 4 retailers

4 retailers£831 GBP to £1,156 GBP

B
Cheapest Retailer
-
£831 GBP
$1,106 USD
B
Retailer 2
-
£984 GBP
$1,310 USD
View
B
Retailer 3
-
£1,156 GBP
$1,540 USD
View
Most Expensive
B
Zales
528666910 · Oct 28
£1,156 GBP
$1,540 USD
View
3 more retailers have this diamond
Prices start from £831 GBPSave up to £326 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.

B
1.28ct Radiant
£831 GBP