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1.51ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG447001714

Shape and cutting style on the report: Round brilliant

Certificate IGI LG447001714

Diamond specifications and retailer prices

From $1,490 NZD
$840 USD
As of October 30, 2026
Save $5,912 NZD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,402 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447001714 or 447001714. Listed at 11 retailers as of October 29, 2026, with prices from $1,490 to $7,402, a $5,912 spread on the same certified stone. MOH London lists it at $7,402. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.3°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447001714
Dimensions7.37 × 7.32 × 4.45 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.37 mm7.32 mm1.51 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG447001714
Side View
Table 57.0%Crown 32.3°Girdle: Slightly ThickPavilion 40°Culet: NoneDepth 60.5%

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: $7,402 NZD|Low: $1,490 NZD|High: $7,463 NZD|Avg: $3,235 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$1,490 NZD
Retailer 7$1,872 NZD
Retailer 10$2,037 NZD
Retailer 12$2,094 NZD
Retailer 8$2,172 NZD
Retailer 13$2,172 NZD
Retailer 6$2,526 NZD
Retailer 4$3,133 NZD
Retailer 9$3,462 NZD
Retailer 11$4,070 NZD
Retailer 3$4,537 NZD
Retailer 5$4,857 NZD
MOH London$7,402 NZD

36 data points across 13 retailers

11 retailers$1,490 NZD to $7,402 NZD

A
Cheapest Retailer
-
$1,490 NZD
$840 USD
B+
Retailer 2
-
$1,872 NZD
$1,055 USD
View
B+
Retailer 3
-
$2,037 NZD
$1,148 USD
View
B+
Retailer 4
-
$2,094 NZD
$1,180 USD
View
Final sale: no returns
Retailer 5
-
$2,172 NZD
$1,224 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$2,172 NZD
$1,224 USD
View
B+
Retailer 7
-
$2,526 NZD
£1,121 GBP
View
B
Retailer 8
-
$3,462 NZD
$1,951 USD
View
B
Retailer 9
-
$4,070 NZD
$2,294 USD
View
B
Retailer 10
-
$4,537 NZD
$2,557 USD
View
Most Expensive
B
MOH London
LG447001714 · Oct 29
$7,402 NZD
£3,285 GBP
View
10 more retailers have this diamond
Prices start from $1,490 NZDSave up to $5,912 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