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Oval|Lab Grown|IGI

4.78ct D VS1 Oval Lab Grown Diamond

ID • D/VS1 • IGI LG787641401

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG787641401

Diamond specifications and retailer prices

From £691 GBP
As of October 30, 2026
Save £4,688 GBP (87%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £5,379 GBP at Frank Darling · As of October 29, 2026
View at Frank Darling

About this 4.78ct lab-grown oval diamond

This 4.78ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG787641401 or 787641401. Listed at 12 retailers as of October 29, 2026, with prices from £691 to £5,379, a £4,688 spread on the same certified stone. Frank Darling lists it at £5,379. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.78
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787641401
Dimensions14.04 × 9.63 × 5.71 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.04 mm9.63 mm4.78 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787641401
Side View
Table 62.0%Crown 34.4°Girdle: THN-MEDPavilion 40.6°Culet: NoneDepth 59.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £5,379 GBP|Low: £645 GBP|High: £5,538 GBP|Avg: £2,086 GBP|-0.2%
Frank Darling
Retailer 2
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Retailer 11
Retailer 12
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Retailer 17
October 31, 2026
Retailer 6£645 GBP
Retailer 10£691 GBP
Retailer 12£800 GBP
Retailer 14£903 GBP
Retailer 13£925 GBP
Retailer 3£1,020 GBP
Retailer 15£1,213 GBP
Retailer 7£1,547 GBP
Retailer 2£1,559 GBP
Retailer 4£1,605 GBP
Retailer 17£1,946 GBP
Retailer 16£2,713 GBP
Retailer 9£2,775 GBP
Retailer 5£2,785 GBP
Retailer 8£3,570 GBP
Retailer 11£5,023 GBP
Frank Darling£5,379 GBP

11 data points across 17 retailers

12 retailers£691 GBP to £5,379 GBP

A
Cheapest Retailer
-
£691 GBP
A
Retailer 2
-
£800 GBP
$1,072 USD
View
A
Retailer 3
-
£903 GBP
$1,210 USD
View
B+
Retailer 4
-
£925 GBP
$1,239 USD
View
A
Retailer 5
-
£1,020 GBP
$1,367 USD
View
A
Retailer 6
-
£1,213 GBP
€1,548 EUR
View
A
Retailer 7
-
£1,559 GBP
$2,089 USD
View
Retailer 8
-
£1,605 GBP
$2,150 USD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
£1,946 GBP
$2,608 USD
View
B
Retailer 10
-
£2,713 GBP
View
B
Retailer 11
-
£5,023 GBP
$6,730 USD
View
Most Expensive
B
Frank Darling
910739BD · Oct 29
£5,379 GBP
$7,207 USD
View
11 more retailers have this diamond
Prices start from £691 GBPSave up to £4,688 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
4.78ct Oval
£691 GBP