Round|Lab Grown|GCAL

0.78ct F VVS1 Round Lab Grown Diamond

ID • F/VVS1 • GCAL 361666311

Certificate GCAL 361666311

Diamond specifications and retailer prices

From £288 GBP
$387 USD
As of November 1, 2026
Save £156 GBP (35%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,107 GBP at Diamond Exchange Canada · As of October 22, 2026
View at Diamond Exchange Canada

About this 0.78ct lab-grown round diamond

This 0.78ct lab-grown round sits in the just-under-one-carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by GCAL 361666311. Listed at 4 retailers as of November 1, 2026, with a 54% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.78
Carat
F
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGCAL
CertificateGCAL 361666311
Dimensions5.96 × 5.96 × 3.64 mm
L/W Ratio1.00
Top View
5.96 mm5.96 mm0.78 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL 361666311
Side View
Table 57.0%CrownGirdle: ThinPavilionCulet: NoneDepth 61.1%

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: Nov 1
Current: £1,107 GBP|Low: £288 GBP|High: £2,034 GBP|Avg: £949 GBP
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
September 29, 2026
Retailer 2£288 GBP
Retailer 3£445 GBP
Diamond Exchange Canada£1,107 GBP
Retailer 4£2,034 GBP

2 data points across 4 retailers

4 retailers£288 GBP to £445 GBP

B+
Cheapest Retailer
-
£288 GBP
$387 USD
B
Retailer 2
-
£445 GBP
$597 USD
View
Most Expensive
Diamond Exchange Canada
1985707102 · Oct 22
£1,107 GBP
CA$2,064 CAD
View
Price under review
2 more retailers have this diamond
Prices start from £288 GBPSave up to £156 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 Round
£288 GBP