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Oval|Lab Grown|IGI

10.40ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG549220745

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG549220745

Diamond specifications and retailer prices

From $1,871 USD
£1,473 GBP
As of October 27, 2026
Save $13,129 USD (88%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $15,000 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 10.4ct lab-grown oval diamond

This 10.4ct 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 LG549220745 or 549220745. Listed at 11 retailers as of October 27, 2026, with prices from $1,871 to $15,000, a $13,129 spread on the same certified stone. Brilliant Earth lists it at $15,000. 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

10.40
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG549220745
Dimensions17.79 × 12.25 × 7.72 mm
L/W Ratio1.45
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
17.79 mm12.25 mm10.40 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG549220745
Side View
Table 61.5%Crown 35.1°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 63.0%

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: Oct 27
Current: $16,280 USD|Low: $1,871 USD|High: $16,280 USD|Avg: $6,960 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 1, 2026
Retailer 12$1,871 USD
Retailer 8$2,372 USD
Retailer 13$2,988 USD
Retailer 6$3,059 USD
Retailer 5$3,520 USD
Retailer 2$3,574 USD
Retailer 9$3,599 USD
Retailer 4$4,037 USD
Retailer 3$5,251 USD
Retailer 14$5,839 USD
Retailer 10$9,147 USD
Retailer 15$10,067 USD
Retailer 11$11,230 USD
Retailer 7$14,829 USD
Brilliant Earth$16,280 USD

11 data points across 15 retailers

11 retailers$1,871 USD to $15,000 USD

A
Cheapest Retailer
-
$1,871 USD
£1,473 GBP
A
Retailer 2
-
$2,372 USD
View
B+
Retailer 3
-
$2,988 USD
View
B
Retailer 4
-
$3,574 USD
£2,815 GBP
View
B+
Retailer 5
-
$3,599 USD
View
B
Retailer 6
-
$5,251 USD
View
B
Retailer 7
-
$5,839 USD
View
B
Retailer 8
-
$9,147 USD
View
B
Retailer 9
-
$10,067 USD
View
B
Retailer 10
-
$11,230 USD
View
Most Expensive
B
Brilliant Earth
22300764A · Oct 31
$15,000 USD
View
10 more retailers have this diamond
Prices start from $1,871 USDSave up to $13,129 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
10.40ct Oval
$1,871 USD