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 $260 USD
As of November 6, 2026
Save $722 USD (74%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $982 USD 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 $260 to $982, a $722 spread on the same certified stone. Taylor and Hart lists it at $982. 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
Color
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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Price History

Last verified: Nov 6
Current: $368 USD|Low: $260 USD|High: $982 USD|Avg: $552 USD|-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$260 USD
Retailer 6$289 USD
Retailer 1$368 USD
Retailer 3$390 USD
Retailer 7$475 USD
Retailer 2$538 USD
Retailer 5$933 USD
Retailer 4$936 USD
Taylor and Hart$982 USD

16 data points across 9 retailers

11 retailers$260 USD to $982 USD

A
Cheapest Retailer
-
$260 USD
Final sale: no returns
A
Retailer 2
-
$270 USD
View
Retailer 3
-
$289 USD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$368 USD
View
B+
Retailer 5
-
$390 USD
View
A
Retailer 6
-
$475 USD
View
B+
Retailer 7
-
$538 USD
View
B
Retailer 8
-
$840 USD
View
B
Retailer 9
-
$933 USD
View
B
Retailer 10
-
$936 USD
View
Most Expensive
B
Taylor and Hart
3ACSFXT · Nov 6
$982 USD
View
10 more retailers have this diamond
Prices start from $260 USDSave up to $722 USD

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
$260 USD