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Oval|Lab Grown|IGI

3.98ct D VS1 Oval Lab Grown Diamond

VG • D/VS1 • IGI LG838621829

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG838621829

Diamond specifications and retailer prices

From £465 GBP
$623 USD
As of October 29, 2026
Save £3,550 GBP (88%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,015 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.98ct lab-grown oval diamond

This 3.98ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG838621829 or 838621829. Listed at 22 retailers as of October 29, 2026, with prices from £465 to £4,015, a £3,550 spread on the same certified stone. Brilliant Earth lists it at £4,015. 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

3.98
Carat
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.7°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838621829
Dimensions13.72 × 8.87 × 5.25 mm
L/W Ratio1.55
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.72 mm8.87 mm3.98 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838621829
Side View
Table 58.0%Crown 31.7°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 59.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,430 GBP|Low: £456 GBP|High: £2,832 GBP|Avg: £1,362 GBP|+4.9%
Retailer 1
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Retailer 21
October 31, 2026
Retailer 21£465 GBP
Retailer 9£520 GBP
Retailer 5£576 GBP
Retailer 2£672 GBP
Retailer 17£724 GBP
Retailer 15£780 GBP
Retailer 13£835 GBP
Retailer 18£901 GBP
Retailer 12£1,218 GBP
Retailer 6£1,252 GBP
Retailer 19£1,272 GBP
Retailer 1£1,430 GBP
Retailer 10£1,487 GBP
Retailer 3£1,672 GBP
Retailer 7£1,839 GBP
Retailer 20£1,862 GBP
Retailer 16£1,898 GBP
Retailer 8£1,930 GBP
Retailer 4£2,283 GBP
Retailer 14£2,460 GBP
Retailer 11£2,806 GBP

28 data points across 21 retailers

22 retailers£465 GBP to £4,015 GBP

A
Cheapest Retailer
-
£465 GBP
$623 USD
A
Retailer 2
-
£520 GBP
$697 USD
View
Final sale: no returns
Retailer 3
-
£571 GBP
$765 USD
View
Price last confirmed 15 days ago
A
Retailer 4
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£576 GBP
$772 USD
View
A
Retailer 5
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£672 GBP
$900 USD
View
A
Retailer 6
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£724 GBP
View
B+
Retailer 7
-
£780 GBP
$1,045 USD
View
A
Retailer 8
-
£901 GBP
View
B+
Retailer 9
-
£1,218 GBP
A$2,510 AUD
View
B+
Retailer 10
-
£1,252 GBP
ZAR 27,095 ZAR
View
B+
Retailer 11
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£1,272 GBP
$1,705 USD
View
B+
Retailer 12
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£1,430 GBP
$1,916 USD
View
B+
Retailer 13
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£1,487 GBP
$1,992 USD
View
B+
Retailer 14
-
£1,672 GBP
View
B+
Retailer 15
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£1,839 GBP
$2,464 USD
View
B+
Retailer 16
-
£1,862 GBP
$2,494 USD
View
B+
Retailer 17
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£1,898 GBP
$2,543 USD
View
B+
Retailer 18
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£1,930 GBP
$2,586 USD
View
B
Retailer 19
-
£2,283 GBP
View
Retailer 20
-
£2,460 GBP
A$5,071 AUD
View
Price last confirmed 23 days ago
B
Retailer 21
-
£2,806 GBP
$3,760 USD
View
Most Expensive
B
Brilliant Earth
21801041A · Oct 29
£4,015 GBP
$5,380 USD
View
21 more retailers have this diamond
Prices start from £465 GBPSave up to £3,550 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
3.98ct Oval
£465 GBP