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Round|Lab Grown|IGI

1.51ct J VS2 Round Lab Grown Diamond

VG • J/VS2 • IGI LG407939121

Shape and cutting style on the report: Round brilliant

Certificate IGI LG407939121

Diamond specifications and retailer prices

From $1,490 NZD
$840 USD
As of October 30, 2026
Save $6,725 NZD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,216 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG407939121 or 407939121. Listed at 11 retailers as of October 29, 2026, with prices from $1,490 to $8,216, a $6,725 spread on the same certified stone. MOH London lists it at $8,216. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
J
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407939121
Dimensions7.14 × 7.23 × 4.63 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
7.14 mm7.23 mm1.51 ctJ / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG407939121
Side View
Table 54.5%Crown 34.4°Girdle: STK-THKPavilion 41.3°Culet: NoneDepth 64.4%

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: $8,216 NZD|Low: $1,490 NZD|High: $8,272 NZD|Avg: $3,742 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
October 30, 2026
Retailer 2$1,490 NZD
Retailer 5$2,193 NZD
Retailer 9$2,386 NZD
Retailer 8$2,456 NZD
Retailer 6$2,544 NZD
Retailer 11$2,848 NZD
Retailer 3$3,584 NZD
Retailer 7$4,033 NZD
Retailer 10$4,768 NZD
Retailer 12$4,872 NZD
Retailer 4$5,694 NZD
MOH London$8,216 NZD

14 data points across 12 retailers

11 retailers$1,490 NZD to $8,216 NZD

A
Cheapest Retailer
-
$1,490 NZD
$840 USD
B+
Retailer 2
-
$2,193 NZD
$1,236 USD
View
B+
Retailer 3
-
$2,386 NZD
$1,345 USD
View
B+
Retailer 4
-
$2,456 NZD
$1,384 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,544 NZD
$1,434 USD
View
Retailer 6
-
$2,544 NZD
$1,434 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$2,848 NZD
$1,605 USD
View
B
Retailer 8
-
$4,033 NZD
$2,273 USD
View
B
Retailer 9
-
$4,768 NZD
$2,687 USD
View
B
Retailer 10
-
$4,872 NZD
$2,746 USD
View
Most Expensive
B
MOH London
LG407939121 · Oct 29
$8,216 NZD
£3,646 GBP
View
10 more retailers have this diamond
Prices start from $1,490 NZDSave up to $6,725 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
1.51ct Round
$1,490 NZD