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Round|Lab Grown|IGI

1.70ct J SI2 Round Lab Grown Diamond

ID • J/SI2 • IGI LG451057952

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451057952

Diamond specifications and retailer prices

From $1,367 AUD
$960 USD
As of October 30, 2026
Save $4,925 AUD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,292 AUD at MOH London · As of October 27, 2026
View at MOH London

About this 1.7ct lab-grown round diamond

This 1.7ct 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 LG451057952 or 451057952. Listed at 10 retailers as of October 27, 2026, with prices from $1,367 to $6,292, a $4,925 spread on the same certified stone. MOH London lists it at $6,292. 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

1.70
Carat
J
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057952
Dimensions7.64 × 7.68 × 4.73 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.64 mm7.68 mm1.70 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057952
Side View
Table 58.0%Crown 33.2°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 61.8%

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: $6,292 AUD|Low: $1,367 AUD|High: $6,368 AUD|Avg: $2,947 AUD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2$1,367 AUD
Retailer 4$1,686 AUD
Retailer 7$1,834 AUD
Retailer 9$1,888 AUD
Retailer 5$1,956 AUD
Retailer 11$2,783 AUD
Retailer 6$3,102 AUD
Retailer 8$3,666 AUD
Retailer 10$3,854 AUD
Retailer 3$4,373 AUD
MOH London$6,292 AUD

15 data points across 11 retailers

10 retailers$1,367 AUD to $6,292 AUD

A
Cheapest Retailer
-
$1,367 AUD
$960 USD
B+
Retailer 2
-
$1,686 AUD
$1,184 USD
View
A
Retailer 3
-
$1,834 AUD
$1,288 USD
View
B+
Retailer 4
-
$1,888 AUD
$1,326 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,956 AUD
$1,374 USD
View
Retailer 6
-
$1,956 AUD
$1,374 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
$3,102 AUD
$2,179 USD
View
B
Retailer 8
-
$3,666 AUD
$2,575 USD
View
B
Retailer 9
-
$3,854 AUD
$2,707 USD
View
Most Expensive
B
MOH London
LG451057952 · Oct 27
$6,292 AUD
£3,480 GBP
View
9 more retailers have this diamond
Prices start from $1,367 AUDSave up to $4,925 AUD

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
1.70ct Round
$1,367 AUD