Round|Lab Grown|IGI

0.78ct F VVS1 Round Lab Grown Diamond

EX • F/VVS1 • IGI LG836640373

Shape and cutting style on the report: Round brilliant

Certificate IGI LG836640373

Diamond specifications and retailer prices

From £237 GBP
€303 EUR
As of October 27, 2026
Save £239 GBP (50%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £477 GBP at Riddles Jewelry · As of October 27, 2026
View at Riddles Jewelry

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 IGI LG836640373 or 836640373. Listed at 7 retailers as of October 27, 2026, with prices from £237 to £477, a £239 spread on the same certified stone. Riddles Jewelry lists it at £477. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836640373
Dimensions5.86 × 5.89 × 3.66 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.86 mm5.89 mm0.78 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836640373
Side View
Table 58.0%Crown 36.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.4%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: £142 GBP|Low: £131 GBP|High: £656 GBP|Avg: £335 GBP|-5.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Riddles Jewelry
October 18, 2026
Retailer 11£131 GBP
Retailer 12£138 GBP
Retailer 1£142 GBP
Retailer 10£214 GBP
Retailer 7£231 GBP
Retailer 5£237 GBP
Retailer 3£238 GBP
Retailer 8£371 GBP
Retailer 2£451 GBP
Retailer 6£469 GBP
Riddles Jewelry£477 GBP
Retailer 4£492 GBP
Retailer 9£655 GBP

12 data points across 13 retailers

7 retailers£237 GBP to £477 GBP

Retailer 1
-
£131 GBP
$176 USD
Price last confirmed 41 days ago
Retailer 2
-
£138 GBP
$185 USD
View
Price last confirmed 42 days ago
Retailer 3
-
£142 GBP
$190 USD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
£237 GBP
€303 EUR
View
Retailer 5
-
£451 GBP
$604 USD
View
Price last confirmed 40 days ago
B
Retailer 6
-
£469 GBP
$628 USD
View
Most Expensive
B
Riddles Jewelry
1986619615 · Oct 27
£477 GBP
$639 USD
View
6 more retailers have this diamond
Prices start from £237 GBPSave up to £239 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
£237 GBP