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Oval|Lab Grown|IGI

0.78ct D SI1 Oval Lab Grown Diamond

EX • D/SI1

Diamond specifications and retailer prices

From £511 GBP
CA$951 CAD
As of October 30, 2026
7 retailers carry this diamond
Most expensive: £511 GBP at Diamond Exchange Canada
View at Diamond Exchange Canada

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 top-tier cut grade and certified by IGI. Listed at 7 retailers as of October 30, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.78
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions7.74 × 5.21 × 3.18 mm
L/W Ratio1.49
Top View
7.74 mm5.21 mm0.78 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 61.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: £511 GBP|Low: £97 GBP|High: £511 GBP|Avg: £242 GBP
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 1, 2026
Retailer 2£97 GBP
Retailer 6£113 GBP
Retailer 4£119 GBP
Retailer 3£120 GBP
Retailer 7£202 GBP
Retailer 5£427 GBP
Diamond Exchange Canada£511 GBP

12 data points across 7 retailers

7 retailers

Retailer 1
-
£97 GBP
$130 USD
Price last confirmed 35 days ago
Retailer 2
-
£97 GBP
$130 USD
View
Price last confirmed 31 days ago
Retailer 3
-
£113 GBP
$151 USD
View
Price last confirmed 35 days ago
Retailer 4
-
£119 GBP
$159 USD
View
Price last confirmed 31 days ago
Retailer 5
-
£119 GBP
$159 USD
View
Price last confirmed 35 days ago
Retailer 6
-
£427 GBP
$572 USD
View
Price last confirmed 30 days ago
Most Expensive
B
Diamond Exchange Canada
1986544585 · Oct 30
£511 GBP
CA$951 CAD
View
6 more retailers have this diamond

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
£511 GBP