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Oval|Lab Grown|IGI

12.33ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG559269001

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG559269001

Diamond specifications and retailer prices

From $1,991 USD
£1,568 GBP
As of October 27, 2026
Save $15,799 USD (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $17,790 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 12.33ct lab-grown oval diamond

This 12.33ct lab-grown oval sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG559269001 or 559269001. Listed at 11 retailers as of October 27, 2026, with prices from $1,991 to $17,790, a $15,799 spread on the same certified stone. Brilliant Earth lists it at $17,790. 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

12.33
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG559269001
Dimensions18.85 × 13.09 × 8.12 mm
L/W Ratio1.44
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
18.85 mm13.09 mm12.33 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG559269001
Side View
Table 61.0%Crown 35.2°Girdle: MediumPavilion 41.2°Culet: NoneDepth 62.0%

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: Oct 27
Current: $19,300 USD|Low: $1,991 USD|High: $19,300 USD|Avg: $9,113 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 18
November 1, 2026
Retailer 16$1,991 USD
Retailer 12$2,806 USD
Retailer 17$3,532 USD
Retailer 7$3,866 USD
Retailer 11$4,149 USD
Retailer 13$4,258 USD
Retailer 6$4,267 USD
Retailer 5$5,096 USD
Retailer 2$5,835 USD
Retailer 4$6,167 USD
Retailer 18$8,123 USD
Retailer 14$10,801 USD
Retailer 3$11,935 USD
Retailer 15$13,280 USD
Retailer 8$13,890 USD
Retailer 9$16,670 USD
Retailer 10$16,670 USD
Brilliant Earth$19,300 USD

11 data points across 18 retailers

11 retailers$1,991 USD to $17,790 USD

A
Cheapest Retailer
-
$1,991 USD
£1,568 GBP
A
Retailer 2
-
$2,806 USD
View
B+
Retailer 3
-
$3,532 USD
View
B
Retailer 4
-
$4,149 USD
£3,267 GBP
View
B
Retailer 5
-
$4,258 USD
View
B
Retailer 6
-
$6,167 USD
View
B
Retailer 7
-
$8,123 USD
View
B
Retailer 8
-
$10,801 USD
View
B
Retailer 9
-
$11,935 USD
View
B
Retailer 10
-
$13,280 USD
View
Most Expensive
B
Brilliant Earth
22300988A · Oct 31
$17,790 USD
View
10 more retailers have this diamond
Prices start from $1,991 USDSave up to $15,799 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
12.33ct Oval
$1,991 USD