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Oval|Lab Grown|IGI

1.51ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG445038845

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445038845

Diamond specifications and retailer prices

From $1,223 AUD
As of November 6, 2026
Save $5,751 AUD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,974 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 1.51ct lab-grown oval diamond

This 1.51ct lab-grown oval sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445038845 or 445038845. Listed at 11 retailers as of November 5, 2026, with prices from $1,223 to $6,974, a $5,751 spread on the same certified stone. MOH London lists it at $6,974. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445038845
Dimensions9.00 × 6.53 × 4.12 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.00 mm6.53 mm1.51 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445038845
Side View
Table 56.5%Crown 32.8°Girdle: STK-THKPavilion 42°Culet: NoneDepth 63.1%

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: Nov 6
Current: $6,974 AUD|Low: $1,223 AUD|High: $7,085 AUD|Avg: $3,593 AUD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 2$1,223 AUD
Retailer 5$2,110 AUD
Retailer 9$2,297 AUD
Retailer 10$2,364 AUD
Retailer 6$2,448 AUD
Retailer 12$2,700 AUD
Retailer 3$3,327 AUD
Retailer 7$3,861 AUD
Retailer 11$4,443 AUD
Retailer 8$4,589 AUD
MOH London$6,974 AUD
Retailer 4$7,008 AUD

17 data points across 12 retailers

11 retailers$1,223 AUD to $6,974 AUD

A
Cheapest Retailer
-
$1,223 AUD
B+
Retailer 2
-
$2,110 AUD
View
B+
Retailer 3
-
$2,297 AUD
View
B+
Retailer 4
-
$2,364 AUD
View
Final sale: no returns
Retailer 5
-
$2,448 AUD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$2,448 AUD
View
B+
Retailer 7
-
$2,700 AUD
View
B
Retailer 8
-
$3,861 AUD
View
B
Retailer 9
-
$4,443 AUD
View
B
Retailer 10
-
$4,589 AUD
View
Most Expensive
B
MOH London
LG445038845 · Nov 5
$6,974 AUD
£3,773 GBP
View
10 more retailers have this diamond
Prices start from $1,223 AUDSave up to $5,751 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
1.51ct Oval
$1,223 AUD