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Round|Lab Grown|IGI

1.71ct J VS1 Round Lab Grown Diamond

ID • J/VS1 • IGI LG492123275

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492123275

Diamond specifications and retailer prices

From $1,686 NZD
$950 USD
As of October 30, 2026
Save $7,177 NZD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,862 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.71ct lab-grown round diamond

This 1.71ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG492123275 or 492123275. Listed at 12 retailers as of October 29, 2026, with prices from $1,686 to $8,862, a $7,177 spread on the same certified stone. MOH London lists it at $8,862. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
J
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492123275
Dimensions7.58 × 7.64 × 4.76 mm
L/W Ratio1.01
Girdle conditionFaceted
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
7.58 mm7.64 mm1.71 ctJ / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492123275
Side View
Table 55.5%Crown 35°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.5%

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 30
Current: $8,862 NZD|Low: $1,686 NZD|High: $8,935 NZD|Avg: $4,501 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 30, 2026
Retailer 2$1,686 NZD
Retailer 8$2,661 NZD
Retailer 11$2,896 NZD
Retailer 13$2,979 NZD
Retailer 9$3,087 NZD
Retailer 3$3,389 NZD
Retailer 4$4,191 NZD
Retailer 10$4,865 NZD
Retailer 7$5,458 NZD
Retailer 6$5,674 NZD
Retailer 12$5,786 NZD
Retailer 5$6,906 NZD
MOH London$8,862 NZD

21 data points across 13 retailers

12 retailers$1,686 NZD to $8,862 NZD

A
Cheapest Retailer
-
$1,686 NZD
$950 USD
A
Retailer 2
-
$2,661 NZD
$1,500 USD
View
B+
Retailer 3
-
$2,896 NZD
$1,632 USD
View
B+
Retailer 4
-
$2,979 NZD
$1,679 USD
View
Final sale: no returns
Retailer 5
-
$3,087 NZD
$1,740 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$3,087 NZD
$1,740 USD
View
B+
Retailer 7
-
$3,389 NZD
$1,910 USD
View
B
Retailer 8
-
$4,865 NZD
$2,742 USD
View
B
Retailer 9
-
$5,458 NZD
$3,076 USD
View
B
Retailer 10
-
$5,674 NZD
ZAR 51,664 ZAR
View
B
Retailer 11
-
$5,786 NZD
$3,261 USD
View
Most Expensive
B
MOH London
LG492123275 · Oct 29
$8,862 NZD
£3,933 GBP
View
11 more retailers have this diamond
Prices start from $1,686 NZDSave up to $7,177 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
1.71ct Round
$1,686 NZD