CaratHunter
Plans
Oval|Lab Grown|IGI

1.00ct E SI2 Oval Lab Grown Diamond

ID • E/SI2 • IGI LG472171953

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG472171953

Diamond specifications and retailer prices

From £440 GBP
$586 USD
As of October 29, 2026
Save £915 GBP (68%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,437 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG472171953 or 472171953. Listed at 11 retailers as of October 26, 2026, with a 208% 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
E
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle30.7°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG472171953
Dimensions7.57 × 5.78 × 3.46 mm
L/W Ratio1.31
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
7.57 mm5.78 mm1.00 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG472171953
Side View
Table 60.5%Crown 30.7°Girdle: THK-VTKPavilion 39.9°Culet: NoneDepth 59.9%

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: £854 GBP|Low: £351 GBP|High: £2,399 GBP|Avg: £855 GBP|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 4£440 GBP
Retailer 8£493 GBP
Retailer 6£546 GBP
Retailer 9£546 GBP
Retailer 5£608 GBP
Retailer 7£839 GBP
Retailer 1£854 GBP
Retailer 3£1,355 GBP
Retailer 2£2,383 GBP

42 data points across 9 retailers

11 retailers£440 GBP to £1,355 GBP

B+
Cheapest Retailer
-
£440 GBP
$586 USD
B
Retailer 2
-
£493 GBP
$657 USD
View
Final sale: no returns
B
Retailer 3
-
£493 GBP
$657 USD
View
B
Retailer 4
-
£546 GBP
$727 USD
View
Retailer 5
-
£546 GBP
$727 USD
View
Price last confirmed 13 days ago
B
Retailer 6
-
£608 GBP
$810 USD
View
B
Retailer 7
-
£839 GBP
$1,117 USD
View
B
Retailer 8
-
£854 GBP
View
B
Retailer 9
-
£1,355 GBP
$1,805 USD
View
Most Expensive
NZ Jewellers
95ff790a-5011-44ae-85ac-b8a51844d776 · Oct 28
£1,437 GBP
$1,913 USD
View
Price under review
9 more retailers have this diamond
Prices start from £440 GBPSave up to £915 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
£440 GBP