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Oval|Lab Grown|IGI

1.51ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG496102629

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG496102629

Diamond specifications and retailer prices

From $1,514 AUD
As of November 6, 2026
Save $2,914 AUD (66%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,282 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG496102629 or 496102629. Listed at 13 retailers as of November 6, 2026, with a 193% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG496102629
Dimensions9.16 × 6.45 × 4.05 mm
L/W Ratio1.42
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
9.16 mm6.45 mm1.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG496102629
Side View
Table 55.0%Crown 34.6°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,282 AUD|Low: $1,514 AUD|High: $8,155 AUD|Avg: $4,061 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5$1,514 AUD
Retailer 7$2,429 AUD
Retailer 10$2,643 AUD
Retailer 8$2,818 AUD
Retailer 2$3,834 AUD
Retailer 3$3,954 AUD
Retailer 9$4,427 AUD
Retailer 6$4,858 AUD
NZ Jewellers$5,282 AUD
Retailer 4$8,025 AUD

45 data points across 10 retailers

13 retailers$1,514 AUD to $4,427 AUD

B+
Cheapest Retailer
-
$1,514 AUD
B
Retailer 2
-
$2,429 AUD
View
B
Retailer 3
-
$2,643 AUD
View
B
Retailer 4
-
$2,720 AUD
View
Final sale: no returns
Retailer 5
-
$2,818 AUD
View
Price last confirmed 26 days ago
B
Retailer 6
-
$2,818 AUD
View
B
Retailer 7
-
$3,064 AUD
View
B
Retailer 8
-
$3,834 AUD
View
B
Retailer 9
-
$3,954 AUD
View
B
Retailer 10
-
$4,427 AUD
View
Retailer 11
-
$4,858 AUD
View
Price under review
Most Expensive
NZ Jewellers
5e71dafc-8239-4e00-9580-461675dac5d6 · Nov 5
$5,282 AUD
$3,629 USD
View
Price under review
11 more retailers have this diamond
Prices start from $1,514 AUDSave up to $2,914 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.

B+
1.51ct Oval
$1,514 AUD