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Radiant|Lab Grown|IGI

1.57ct I VS1 Radiant Lab Grown Diamond

ID • I/VS1 • IGI LG494160318

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG494160318

Diamond specifications and retailer prices

From $2,590 NZD
$1,460 USD
As of October 31, 2026
Save $4,386 NZD (63%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $9,687 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.57ct lab-grown radiant diamond

This 1.57ct lab-grown radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG494160318 or 494160318. Listed at 12 retailers as of October 31, 2026, with a 169% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle29.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494160318
Dimensions7.73 × 5.80 × 3.79 mm
L/W Ratio1.33
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.73 mm5.80 mm1.57 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494160318
Side View
Table 64.0%Crown 36.2°Girdle: Slightly ThickPavilion 29.6°Culet: NoneDepth 65.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $9,687 NZD|Low: $2,590 NZD|High: $9,753 NZD|Avg: $4,967 NZD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 6$2,590 NZD
Retailer 8$2,908 NZD
Retailer 12$3,165 NZD
Retailer 9$3,375 NZD
Retailer 5$3,581 NZD
Retailer 3$3,673 NZD
Retailer 4$4,523 NZD
Retailer 10$5,302 NZD
Retailer 7$5,818 NZD
Retailer 2$6,202 NZD
Retailer 11$6,324 NZD
Retailer 13$6,976 NZD
MOH London$9,687 NZD

21 data points across 13 retailers

12 retailers$2,590 NZD to $6,976 NZD

B+
Cheapest Retailer
-
$2,590 NZD
$1,460 USD
B
Retailer 2
-
$2,908 NZD
$1,639 USD
View
B
Retailer 3
-
$3,165 NZD
$1,784 USD
View
Retailer 4
-
$3,375 NZD
$1,902 USD
View
Price last confirmed 20 days ago
B
Retailer 5
-
$3,375 NZD
$1,902 USD
View
B
Retailer 6
-
$3,673 NZD
$2,070 USD
View
B
Retailer 7
-
$5,302 NZD
$2,988 USD
View
B
Retailer 8
-
$5,818 NZD
$3,279 USD
View
B
Retailer 9
-
$6,202 NZD
ZAR 56,474 ZAR
View
B
Retailer 10
-
$6,324 NZD
$3,564 USD
View
B
Retailer 11
-
$6,976 NZD
£3,096 GBP
View
Most Expensive
MOH London
LG494160318 · Oct 29
$9,687 NZD
£4,299 GBP
View
Price under review
11 more retailers have this diamond
Prices start from $2,590 NZDSave up to $4,386 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.

B+
1.57ct Radiant
$2,590 NZD