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Oval|Lab Grown|IGI

3.05ct D SI1 Oval Lab Grown Diamond

VG • D/SI1 • IGI LG720598342

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG720598342

Diamond specifications and retailer prices

From £315 GBP
$419 USD
As of October 29, 2026
Save £1,765 GBP (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,080 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 3.05ct lab-grown oval diamond

This 3.05ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG720598342 or 720598342. Listed at 17 retailers as of October 28, 2026, with prices from £315 to £2,080, a £1,765 spread on the same certified stone. Brilliant Earth lists it at £2,080. 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

3.05
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720598342
Dimensions11.50 × 8.17 × 5.20 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.50 mm8.17 mm3.05 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720598342
Side View
Table 62.0%Crown 34.2°Girdle: MED-STKPavilion 42°Culet: NoneDepth 63.6%

Caratlytics Score

How it works →
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: £2,080 GBP|Low: £303 GBP|High: £2,140 GBP|Avg: £821 GBP|-2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 11£315 GBP
Retailer 5£352 GBP
Retailer 3£353 GBP
Retailer 6£390 GBP
Retailer 12£390 GBP
Retailer 8£499 GBP
Retailer 13£615 GBP
Retailer 2£643 GBP
Retailer 4£674 GBP
Retailer 10£937 GBP
Retailer 14£1,256 GBP
Retailer 7£1,442 GBP
Retailer 9£1,509 GBP
Brilliant Earth£2,080 GBP

43 data points across 14 retailers

17 retailers£315 GBP to £2,080 GBP

A
Cheapest Retailer
-
£315 GBP
$419 USD
A
Retailer 2
-
£352 GBP
$469 USD
View
Final sale: no returns
A
Retailer 3
-
£353 GBP
$470 USD
View
A
Retailer 4
-
£390 GBP
$520 USD
View
A
Retailer 5
-
£390 GBP
$520 USD
View
A
Retailer 6
-
£499 GBP
$665 USD
View
B+
Retailer 7
-
£615 GBP
$819 USD
View
A
Retailer 8
-
£643 GBP
View
B+
Retailer 9
-
£674 GBP
$897 USD
View
B+
Retailer 10
-
£937 GBP
$1,248 USD
View
Retailer 11
-
£1,008 GBP
$1,342 USD
View
Price last confirmed 44 days ago
B
Retailer 12
-
£1,158 GBP
$1,542 USD
View
B
Retailer 13
-
£1,256 GBP
$1,672 USD
View
B
Retailer 14
-
£1,281 GBP
$1,705 USD
View
B
Retailer 15
-
£1,442 GBP
View
B
Retailer 16
-
£1,509 GBP
$2,010 USD
View
Most Expensive
B
Brilliant Earth
15303630A · Oct 28
£2,080 GBP
$2,770 USD
View
16 more retailers have this diamond
Prices start from £315 GBPSave up to £1,765 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
3.05ct Oval
£315 GBP