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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 $469 NZD
As of November 6, 2026
Save $1,302 NZD (74%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,771 NZD 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 $469 to $1,771, a $1,302 spread on the same certified stone. Taylor and Hart lists it at $1,771. 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

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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: $664 NZD|Low: $469 NZD|High: $1,771 NZD|Avg: $995 NZD|-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$469 NZD
Retailer 6$521 NZD
Retailer 1$664 NZD
Retailer 3$704 NZD
Retailer 7$857 NZD
Retailer 2$970 NZD
Retailer 5$1,683 NZD
Retailer 4$1,688 NZD
Taylor and Hart$1,771 NZD

16 data points across 9 retailers

11 retailers$469 NZD to $1,771 NZD

A
Cheapest Retailer
-
$469 NZD
Final sale: no returns
A
Retailer 2
-
$487 NZD
View
Retailer 3
-
$521 NZD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$664 NZD
View
B+
Retailer 5
-
$704 NZD
View
A
Retailer 6
-
$857 NZD
View
B+
Retailer 7
-
$970 NZD
View
B
Retailer 8
-
$1,515 NZD
View
B
Retailer 9
-
$1,683 NZD
View
B
Retailer 10
-
$1,688 NZD
View
Most Expensive
B
Taylor and Hart
3ACSFXT · Nov 6
$1,771 NZD
$982 USD
View
10 more retailers have this diamond
Prices start from $469 NZDSave up to $1,302 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 Oval
$469 NZD