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Round|Lab Grown|IGI

2.57ct J VS1 Round Lab Grown Diamond

EX • J/VS1 • IGI LG450041598

Shape and cutting style on the report: Round brilliant

Certificate IGI LG450041598

Diamond specifications and retailer prices

From £257 GBP
$342 USD
As of October 29, 2026
Save £2,018 GBP (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,275 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 2.57ct lab-grown round diamond

This 2.57ct lab-grown round sits in the two to three carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG450041598 or 450041598. Listed at 15 retailers as of October 29, 2026, with prices from £257 to £2,275, a £2,018 spread on the same certified stone. Do Amore Diamonds lists it at £2,275. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.57
Carat
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG450041598
Dimensions8.66 × 8.69 × 5.41 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
8.66 mm8.69 mm2.57 ctJ / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG450041598
Side View
Table 57.5%Crown 35.9°Girdle: Slightly ThickPavilion 40.3°Culet: NoneDepth 62.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £2,275 GBP|Low: £288 GBP|High: £16,211 GBP|Avg: £2,006 GBP
Do Amore Diamonds
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
October 29, 2026
Retailer 12£288 GBP
Retailer 13£297 GBP
Retailer 11£423 GBP
Retailer 9£432 GBP
Retailer 4£642 GBP
Retailer 15£652 GBP
Retailer 7£676 GBP
Retailer 14£764 GBP
Retailer 8£847 GBP
Retailer 10£933 GBP
Retailer 3£1,246 GBP
Retailer 2£1,379 GBP
Do Amore Diamonds£2,275 GBP
Retailer 6£2,312 GBP
Retailer 5£16,211 GBP

25 data points across 15 retailers

15 retailers£257 GBP to £2,275 GBP

A
Cheapest Retailer
-
£257 GBP
$342 USD
A
Retailer 2
-
£288 GBP
$383 USD
View
Final sale: no returns
A
Retailer 3
-
£297 GBP
$396 USD
View
A
Retailer 4
-
£318 GBP
$424 USD
View
A
Retailer 5
-
£318 GBP
$424 USD
View
B+
Retailer 6
-
£423 GBP
$563 USD
View
A
Retailer 7
-
£432 GBP
$575 USD
View
A
Retailer 8
-
£652 GBP
$868 USD
View
A
Retailer 9
-
£764 GBP
$1,018 USD
View
A
Retailer 10
-
£847 GBP
ZAR 18,222 ZAR
View
A
Retailer 11
-
£933 GBP
$1,242 USD
View
A
Retailer 12
-
£1,129 GBP
$1,503 USD
View
A
Retailer 13
-
£1,246 GBP
$1,659 USD
View
A
Retailer 14
-
£1,379 GBP
View
Most Expensive
B+
Do Amore Diamonds
27-1F84E65F8 · Oct 29
£2,275 GBP
$3,030 USD
View
14 more retailers have this diamond
Prices start from £257 GBPSave up to £2,018 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
2.57ct Round
£257 GBP