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Oval|Lab Grown|IGI

1.51ct F SI1 Oval Lab Grown Diamond

VG • F/SI1 • IGI LG825655667

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG825655667

Diamond specifications and retailer prices

From $378 AUD
As of November 6, 2026
Save $1,050 AUD (74%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,429 AUD at Taylor and Hart · As of November 6, 2026
View at Taylor and Hart

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 very-good cut grade and certified by IGI LG825655667 or 825655667. Listed at 11 retailers as of November 6, 2026, with prices from $378 to $1,429, a $1,050 spread on the same certified stone. Taylor and Hart lists it at $1,429. 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
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825655667
Dimensions9.05 × 6.41 × 4.01 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.05 mm6.41 mm1.51 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825655667
Side View
Table 62.0%Crown 34.6°Girdle: STK-THKPavilion 39.9°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $536 AUD|Low: $378 AUD|High: $1,429 AUD|Avg: $803 AUD|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Taylor and Hart
November 6, 2026
Retailer 8$378 AUD
Retailer 6$421 AUD
Retailer 1$536 AUD
Retailer 3$568 AUD
Retailer 7$691 AUD
Retailer 2$783 AUD
Retailer 5$1,358 AUD
Retailer 4$1,362 AUD
Taylor and Hart$1,429 AUD

16 data points across 9 retailers

11 retailers$378 AUD to $1,429 AUD

A
Cheapest Retailer
-
$378 AUD
Final sale: no returns
A
Retailer 2
-
$393 AUD
View
Retailer 3
-
$421 AUD
View
Price last confirmed 13 days ago
A
Retailer 4
-
$536 AUD
View
B+
Retailer 5
-
$568 AUD
View
A
Retailer 6
-
$691 AUD
View
B+
Retailer 7
-
$783 AUD
View
B
Retailer 8
-
$1,223 AUD
View
B
Retailer 9
-
$1,358 AUD
View
B
Retailer 10
-
$1,362 AUD
View
Most Expensive
B
Taylor and Hart
3ACSFXT · Nov 6
$1,429 AUD
$982 USD
View
10 more retailers have this diamond
Prices start from $378 AUDSave up to $1,050 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
$378 AUD