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Oval|Lab Grown|IGI

0.75ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG425086471

Certificate IGI LG425086471

Diamond specifications and retailer prices

From £342 GBP
$455 USD
As of October 29, 2026
Save £342 GBP (50%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £683 GBP at Jared · As of October 30, 2026
View at Jared

About this 0.75ct lab-grown oval diamond

This 0.75ct lab-grown oval sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG425086471 or 425086471. Listed at 4 retailers as of October 29, 2026, with prices from £342 to £683, a £342 spread on the same certified stone. Jared lists it at £683. 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

0.75
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG425086471
Dimensions7.24 × 5.14 × 3.20 mm
L/W Ratio1.41
Top View
7.24 mm5.14 mm0.75 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG425086471
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.3%

Caratlytics Score

How it works →
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 29
Current: £683 GBP|Low: £342 GBP|High: £683 GBP|Avg: £458 GBP|+37.9%
Jared
Retailer 2
Retailer 3
Retailer 4
September 28, 2026
Retailer 3£342 GBP
Retailer 2£451 GBP
Retailer 4£451 GBP
Jared£683 GBP

2 data points across 4 retailers

4 retailers£342 GBP to £683 GBP

B+
Cheapest Retailer
-
£342 GBP
$455 USD
B
Retailer 2
-
£451 GBP
$600 USD
View
B
Retailer 3
-
£451 GBP
$600 USD
View
Most Expensive
B
Jared
136150399 · Oct 30
£683 GBP
$910 USD
View
3 more retailers have this diamond
Prices start from £342 GBPSave up to £342 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+
0.75ct Oval
£342 GBP