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Round|Lab Grown|IGI

2.57ct J VS1 Round Lab Grown Diamond

EX • J/VS1 • IGI LG445027316

Shape and cutting style on the report: Round brilliant

Certificate IGI LG445027316

Diamond specifications and retailer prices

From £255 GBP
$342 USD
As of October 29, 2026
Save £2,006 GBP (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,261 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 LG445027316 or 445027316. Listed at 15 retailers as of October 29, 2026, with prices from £255 to £2,261, a £2,006 spread on the same certified stone. Do Amore Diamonds lists it at £2,261. 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°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445027316
Dimensions8.70 × 8.72 × 5.40 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
8.70 mm8.72 mm2.57 ctJ / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445027316
Side View
Table 61.0%Crown 35°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 62.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £2,261 GBP|Low: £286 GBP|High: £16,112 GBP|Avg: £2,048 GBP|+5.2%
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
October 29, 2026
Retailer 11£286 GBP
Retailer 13£296 GBP
Retailer 10£420 GBP
Retailer 8£429 GBP
Retailer 4£638 GBP
Retailer 14£648 GBP
Retailer 12£760 GBP
Retailer 7£842 GBP
Retailer 9£927 GBP
Retailer 3£1,238 GBP
Retailer 2£1,371 GBP
Do Amore Diamonds£2,261 GBP
Retailer 6£2,298 GBP
Retailer 5£16,112 GBP

24 data points across 14 retailers

15 retailers£255 GBP to £2,261 GBP

A
Cheapest Retailer
-
£255 GBP
$342 USD
A
Retailer 2
-
£286 GBP
$383 USD
View
Final sale: no returns
A
Retailer 3
-
£296 GBP
$396 USD
View
A
Retailer 4
-
£316 GBP
$424 USD
View
A
Retailer 5
-
£316 GBP
$424 USD
View
B+
Retailer 6
-
£420 GBP
$563 USD
View
A
Retailer 7
-
£429 GBP
$575 USD
View
A
Retailer 8
-
£648 GBP
$868 USD
View
A
Retailer 9
-
£760 GBP
$1,018 USD
View
A
Retailer 10
-
£842 GBP
ZAR 18,222 ZAR
View
A
Retailer 11
-
£927 GBP
$1,242 USD
View
A
Retailer 12
-
£1,122 GBP
$1,503 USD
View
A
Retailer 13
-
£1,238 GBP
$1,659 USD
View
A
Retailer 14
-
£1,371 GBP
View
Most Expensive
B+
Do Amore Diamonds
27-5CC5C832C · Oct 29
£2,261 GBP
$3,030 USD
View
14 more retailers have this diamond
Prices start from £255 GBPSave up to £2,006 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
£255 GBP