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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 $487 AUD
$342 USD
As of October 29, 2026
Save $3,827 AUD (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,314 AUD 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 $487 to $4,314, a $3,827 spread on the same certified stone. Do Amore Diamonds lists it at $4,314. 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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $4,314 AUD|Low: $461 AUD|High: $30,733 AUD|Avg: $3,251 AUD|+5.2%
Do Amore Diamonds
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
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Retailer 15
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Retailer 18
October 30, 2026
Retailer 16$487 AUD
Retailer 2$530 AUD
Retailer 4$545 AUD
Retailer 3$604 AUD
Retailer 17$604 AUD
Retailer 11$755 AUD
Retailer 14$819 AUD
Retailer 8$1,217 AUD
Retailer 6$1,236 AUD
Retailer 5$1,449 AUD
Retailer 13$1,606 AUD
Retailer 15$1,768 AUD
Retailer 18$2,140 AUD
Retailer 7$2,361 AUD
Retailer 12$2,614 AUD
Do Amore Diamonds$4,314 AUD
Retailer 10$4,383 AUD
Retailer 9$30,733 AUD

27 data points across 18 retailers

15 retailers$487 AUD to $4,314 AUD

A
Cheapest Retailer
-
$487 AUD
$342 USD
A
Retailer 2
-
$530 AUD
$372 USD
View
A
Retailer 3
-
$545 AUD
$383 USD
View
Final sale: no returns
A
Retailer 4
-
$604 AUD
$424 USD
View
A
Retailer 5
-
$604 AUD
$424 USD
View
B+
Retailer 6
-
$755 AUD
$530 USD
View
A
Retailer 7
-
$819 AUD
$575 USD
View
A
Retailer 8
-
$1,236 AUD
$868 USD
View
A
Retailer 9
-
$1,449 AUD
$1,018 USD
View
A
Retailer 10
-
$1,606 AUD
ZAR 18,222 ZAR
View
A
Retailer 11
-
$1,768 AUD
$1,242 USD
View
A
Retailer 12
-
$2,140 AUD
$1,503 USD
View
A
Retailer 13
-
$2,361 AUD
$1,659 USD
View
A
Retailer 14
-
$2,614 AUD
£1,446 GBP
View
Most Expensive
B+
Do Amore Diamonds
27-5CC5C832C · Oct 29
$4,314 AUD
$3,030 USD
View
14 more retailers have this diamond
Prices start from $487 AUDSave up to $3,827 AUD

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
$487 AUD