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Round|Lab Grown|IGI

1.00ct E SI2 Round Lab Grown Diamond

VG • E/SI2 • IGI LG472170767

Shape and cutting style on the report: Round brilliant

Certificate IGI LG472170767

Diamond specifications and retailer prices

From £486 GBP
$647 USD
As of October 29, 2026
Save £435 GBP (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,584 GBP at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG472170767 or 472170767. Listed at 11 retailers as of October 28, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
E
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG472170767
Dimensions6.31 × 6.36 × 3.89 mm
L/W Ratio1.01
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
6.31 mm6.36 mm1.00 ctE / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG472170767
Side View
Table 61.0%Crown 37°GirdlePavilion 39.9°Culet: NoneDepth 61.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £895 GBP|Low: £355 GBP|High: £2,402 GBP|Avg: £789 GBP|+4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 3£355 GBP
Retailer 6£486 GBP
Retailer 2£529 GBP
Retailer 10£544 GBP
Retailer 8£563 GBP
Retailer 11£563 GBP
Retailer 7£571 GBP
Retailer 1£895 GBP
Retailer 9£921 GBP
Retailer 5£1,440 GBP
Retailer 4£2,386 GBP

41 data points across 11 retailers

11 retailers£486 GBP to £921 GBP

B
Cheapest Retailer
-
£486 GBP
$647 USD
B
Retailer 2
-
£529 GBP
$704 USD
View
B
Retailer 3
-
£544 GBP
$724 USD
View
Final sale: no returns
B
Retailer 4
-
£563 GBP
$750 USD
View
Retailer 5
-
£563 GBP
$750 USD
View
Price last confirmed 13 days ago
B
Retailer 6
-
£571 GBP
$760 USD
View
B
Retailer 7
-
£895 GBP
View
C
Retailer 8
-
£921 GBP
$1,226 USD
View
Retailer 9
-
£1,440 GBP
$1,917 USD
View
Price under review
Most Expensive
NZ Jewellers
2d3af9db-0ecf-4a2d-abf9-9cd404aa7afe · Oct 27
£1,584 GBP
$2,110 USD
View
Price under review
9 more retailers have this diamond
Prices start from £486 GBPSave up to £435 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 Round
£486 GBP