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Oval|Lab Grown|IGI

1.28ct H VS1 Oval Lab Grown Diamond

EX • H/VS1 • IGI LG839624725

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG839624725

Diamond specifications and retailer prices

From £293 GBP
$392 USD
As of October 30, 2026
Save £1,081 GBP (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,373 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.28ct lab-grown oval diamond

This 1.28ct lab-grown oval sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839624725 or 839624725. Listed at 10 retailers as of October 30, 2026, with prices from £293 to £1,373, a £1,081 spread on the same certified stone. Do Amore Diamonds lists it at £1,373. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839624725
Dimensions8.93 × 6.14 × 3.79 mm
L/W Ratio1.45
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.93 mm6.14 mm1.28 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839624725
Side View
Table 58.0%Crown 34.6°Girdle: MED-STKPavilion 40°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
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: £1,373 GBP|Low: £249 GBP|High: £1,373 GBP|Avg: £643 GBP|+19.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 10£293 GBP
Retailer 8£296 GBP
Retailer 2£301 GBP
Retailer 5£413 GBP
Retailer 7£459 GBP
Retailer 4£586 GBP
Retailer 6£703 GBP
Retailer 9£899 GBP
Retailer 3£969 GBP
Do Amore Diamonds£1,373 GBP

15 data points across 10 retailers

10 retailers£293 GBP to £1,373 GBP

A
Cheapest Retailer
-
£293 GBP
$392 USD
A
Retailer 2
-
£296 GBP
$397 USD
View
A
Retailer 3
-
£301 GBP
View
B+
Retailer 4
-
£413 GBP
ZAR 8,945 ZAR
View
B+
Retailer 5
-
£459 GBP
$615 USD
View
B+
Retailer 6
-
£586 GBP
A$1,207 AUD
View
B
Retailer 7
-
£703 GBP
$942 USD
View
B
Retailer 8
-
£899 GBP
$1,205 USD
View
B
Retailer 9
-
£969 GBP
View
Most Expensive
B
Do Amore Diamonds
36-2016167 · Oct 31
£1,373 GBP
$1,840 USD
View
9 more retailers have this diamond
Prices start from £293 GBPSave up to £1,081 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 Oval
£293 GBP