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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 $607 NZD
$342 USD
As of October 29, 2026
Save $4,769 NZD (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,376 NZD at Do Amore Diamonds · As of October 31, 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 $607 to $5,376, a $4,769 spread on the same certified stone. Do Amore Diamonds lists it at $5,376. 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: $5,376 NZD|Low: $575 NZD|High: $38,304 NZD|Avg: $3,965 NZD|+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
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 3$607 NZD
Retailer 12$660 NZD
Retailer 5$680 NZD
Retailer 10$706 NZD
Retailer 4$752 NZD
Retailer 13$940 NZD
Retailer 16$1,020 NZD
Retailer 8$1,517 NZD
Retailer 7$1,540 NZD
Retailer 6$1,806 NZD
Retailer 15$2,001 NZD
Retailer 17$2,204 NZD
Retailer 11$2,504 NZD
Retailer 2$2,783 NZD
Retailer 14$3,258 NZD
Do Amore Diamonds$5,376 NZD
Retailer 9$38,304 NZD

28 data points across 17 retailers

15 retailers$607 NZD to $5,376 NZD

A
Cheapest Retailer
-
$607 NZD
$342 USD
A
Retailer 2
-
$660 NZD
$372 USD
View
A
Retailer 3
-
$680 NZD
$383 USD
View
Final sale: no returns
A
Retailer 4
-
$706 NZD
$398 USD
View
A
Retailer 5
-
$752 NZD
$424 USD
View
B+
Retailer 6
-
$940 NZD
$530 USD
View
A
Retailer 7
-
$1,020 NZD
$575 USD
View
A
Retailer 8
-
$1,540 NZD
$868 USD
View
A
Retailer 9
-
$1,806 NZD
$1,018 USD
View
A
Retailer 10
-
$2,001 NZD
ZAR 18,222 ZAR
View
A
Retailer 11
-
$2,204 NZD
$1,242 USD
View
A
Retailer 12
-
$2,504 NZD
$1,411 USD
View
A
Retailer 13
-
$2,783 NZD
$1,569 USD
View
A
Retailer 14
-
$3,258 NZD
£1,446 GBP
View
Most Expensive
B+
Do Amore Diamonds
27-5CC5C832C · Oct 31
$5,376 NZD
$3,030 USD
View
14 more retailers have this diamond
Prices start from $607 NZDSave up to $4,769 NZD

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
$607 NZD