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Oval|Lab Grown|IGI

1.00ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG472171393

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG472171393

Diamond specifications and retailer prices

From £539 GBP
$722 USD
As of October 29, 2026
Save £475 GBP (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,758 GBP at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 1ct lab-grown oval diamond

This 1ct lab-grown oval sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG472171393 or 472171393. Listed at 12 retailers as of October 28, 2026, with a 88% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG472171393
Dimensions7.63 × 5.70 × 3.54 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.63 mm5.70 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG472171393
Side View
Table 60.0%Crown 33.8°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,001 GBP|Low: £430 GBP|High: £2,488 GBP|Avg: £1,031 GBP|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 5£539 GBP
Retailer 8£603 GBP
Retailer 6£716 GBP
Retailer 3£758 GBP
Retailer 1£1,001 GBP
Retailer 7£1,014 GBP
Retailer 4£1,540 GBP
Retailer 2£2,469 GBP

40 data points across 8 retailers

12 retailers£539 GBP to £1,014 GBP

B+
Cheapest Retailer
-
£539 GBP
$722 USD
B
Retailer 2
-
£587 GBP
$786 USD
View
B
Retailer 3
-
£603 GBP
$808 USD
View
Final sale: no returns
Retailer 4
-
£625 GBP
$838 USD
View
Price last confirmed 18 days ago
B
Retailer 5
-
£625 GBP
$838 USD
View
B
Retailer 6
-
£716 GBP
$960 USD
View
B
Retailer 7
-
£758 GBP
$1,015 USD
View
B
Retailer 8
-
£1,001 GBP
View
B
Retailer 9
-
£1,014 GBP
$1,359 USD
View
Retailer 10
-
£1,540 GBP
$2,064 USD
View
Price under review
Most Expensive
NZ Jewellers
619068fc-c087-4b12-b8b2-12f2824d849f · Oct 28
£1,758 GBP
$2,356 USD
View
Price under review
10 more retailers have this diamond
Prices start from £539 GBPSave up to £475 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+
1.00ct Oval
£539 GBP