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Oval|Lab Grown|IGI

3.03ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG678584074

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG678584074

Diamond specifications and retailer prices

From £335 GBP
$449 USD
As of October 29, 2026
Save £1,717 GBP (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,052 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.03ct lab-grown oval diamond

This 3.03ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG678584074 or 678584074. Listed at 17 retailers as of October 29, 2026, with prices from £335 to £2,052, a £1,717 spread on the same certified stone. Brilliant Earth lists it at £2,052. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.03
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678584074
Dimensions11.21 × 8.30 × 5.13 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.21 mm8.30 mm3.03 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678584074
Side View
Table 61.0%Crown 34.5°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.8%

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: £2,052 GBP|Low: £325 GBP|High: £2,172 GBP|Avg: £798 GBP|-5.5%
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
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 4£335 GBP
Retailer 17£375 GBP
Retailer 3£385 GBP
Retailer 11£415 GBP
Retailer 9£419 GBP
Retailer 15£522 GBP
Retailer 13£552 GBP
Retailer 2£568 GBP
Retailer 7£638 GBP
Retailer 12£638 GBP
Retailer 10£687 GBP
Retailer 8£973 GBP
Retailer 16£1,145 GBP
Retailer 14£1,335 GBP
Retailer 6£1,508 GBP
Retailer 5£1,543 GBP
Brilliant Earth£2,052 GBP

43 data points across 17 retailers

17 retailers£335 GBP to £2,052 GBP

A
Cheapest Retailer
-
£335 GBP
$449 USD
A
Retailer 2
-
£375 GBP
$503 USD
View
A
Retailer 3
-
£385 GBP
$516 USD
View
Final sale: no returns
A
Retailer 4
-
£415 GBP
$556 USD
View
Retailer 5
-
£419 GBP
$562 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
£522 GBP
$700 USD
View
B+
Retailer 7
-
£552 GBP
$740 USD
View
A
Retailer 8
-
£568 GBP
View
A
Retailer 9
-
£638 GBP
$855 USD
View
A
Retailer 10
-
£687 GBP
View
B+
Retailer 11
-
£973 GBP
$1,304 USD
View
B+
Retailer 12
-
£1,145 GBP
$1,534 USD
View
B+
Retailer 13
-
£1,335 GBP
$1,789 USD
View
B
Retailer 14
-
£1,508 GBP
$2,020 USD
View
B
Retailer 15
-
£1,543 GBP
View
Retailer 16
-
£1,544 GBP
$2,069 USD
View
Price last confirmed 74 days ago
Most Expensive
B
Brilliant Earth
17471284A · Oct 29
£2,052 GBP
$2,750 USD
View
16 more retailers have this diamond
Prices start from £335 GBPSave up to £1,717 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
3.03ct Oval
£335 GBP