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Oval|Lab Grown|IGI

0.78ct D SI1 Oval Lab Grown Diamond

VG • D/SI1 • IGI LG455015093

Certificate IGI LG455015093

Diamond specifications and retailer prices

From £333 GBP
$446 USD
As of October 29, 2026
Save £376 GBP (53%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £709 GBP at Jared · As of October 30, 2026
View at Jared

About this 0.78ct lab-grown oval diamond

This 0.78ct lab-grown oval sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG455015093 or 455015093. Listed at 4 retailers as of October 29, 2026, with prices from £333 to £709, a £376 spread on the same certified stone. Jared lists it at £709. 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

0.78
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG455015093
Dimensions7.22 × 5.24 × 3.37 mm
L/W Ratio1.38
Top View
7.22 mm5.24 mm0.78 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG455015093
Side View
Table 62.5%CrownGirdle: MED-STKPavilionCulet: NoneDepth 64.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £709 GBP|Low: £333 GBP|High: £709 GBP|Avg: £460 GBP|+37.7%
Jared
Retailer 2
Retailer 3
Retailer 4
September 28, 2026
Retailer 3£333 GBP
Retailer 2£448 GBP
Retailer 4£448 GBP
Jared£709 GBP

2 data points across 4 retailers

4 retailers£333 GBP to £709 GBP

B+
Cheapest Retailer
-
£333 GBP
$446 USD
B
Retailer 2
-
£448 GBP
$600 USD
View
B
Retailer 3
-
£448 GBP
$600 USD
View
Most Expensive
B
Jared
140194550 · Oct 30
£709 GBP
$950 USD
View
3 more retailers have this diamond
Prices start from £333 GBPSave up to £376 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+
0.78ct Oval
£333 GBP