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Round|Lab Grown|IGI

13.26ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG598382222

Shape and cutting style on the report: Round brilliant

Certificate IGI LG598382222

Diamond specifications and retailer prices

From $2,850 USD
£2,244 GBP
As of October 30, 2026
Save $15,340 USD (84%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $18,190 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 13.26ct lab-grown round diamond

This 13.26ct lab-grown round 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 LG598382222 or 598382222. Listed at 8 retailers as of October 30, 2026, with prices from $2,850 to $18,190, a $15,340 spread on the same certified stone. Brilliant Earth lists it at $18,190. 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

13.26
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598382222
Dimensions15.34 × 15.43 × 9.24 mm
L/W Ratio1.01
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
15.34 mm15.43 mm13.26 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598382222
Side View
Table 58.0%Crown 33.9°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.0%

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 30
Current: $18,190 USD|Low: $2,840 USD|High: $30,038 USD|Avg: $10,390 USD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 2$2,850 USD
Retailer 8$3,416 USD
Retailer 11$4,083 USD
Retailer 6$4,979 USD
Retailer 5$4,980 USD
Retailer 7$5,497 USD
Retailer 9$5,641 USD
Retailer 12$6,475 USD
Retailer 10$9,331 USD
Brilliant Earth$18,190 USD
Retailer 3$28,360 USD
Retailer 4$30,038 USD

34 data points across 12 retailers

8 retailers$2,850 USD to $18,190 USD

A
Cheapest Retailer
-
$2,850 USD
£2,244 GBP
A
Retailer 2
-
$3,416 USD
View
Final sale: no returns
B+
Retailer 3
-
$4,083 USD
HK$31,900 HKD
View
B+
Retailer 4
-
$4,979 USD
View
B+
Retailer 5
-
$4,980 USD
View
B+
Retailer 6
-
$5,497 USD
View
B
Retailer 7
-
$9,331 USD
View
Most Expensive
B
Brilliant Earth
8432317A · Oct 31
$18,190 USD
View
7 more retailers have this diamond
Prices start from $2,850 USDSave up to $15,340 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
13.26ct Round
$2,850 USD