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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 $5,041 NZD
£2,237 GBP
As of November 2, 2026
Save $27,234 NZD (84%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $32,275 NZD 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 31, 2026, with prices from $5,041 to $32,275, a $27,234 spread on the same certified stone. Brilliant Earth lists it at $32,275. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $32,275 NZD|Low: $5,039 NZD|High: $53,296 NZD|Avg: $18,428 NZD|-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
November 2, 2026
Retailer 2$5,041 NZD
Retailer 8$6,061 NZD
Retailer 11$7,245 NZD
Retailer 6$8,834 NZD
Retailer 5$8,836 NZD
Retailer 7$9,753 NZD
Retailer 9$10,008 NZD
Retailer 12$11,489 NZD
Retailer 10$16,556 NZD
Brilliant Earth$32,275 NZD
Retailer 3$50,320 NZD
Retailer 4$53,296 NZD

36 data points across 12 retailers

8 retailers$5,041 NZD to $32,275 NZD

A
Cheapest Retailer
-
$5,041 NZD
£2,237 GBP
A
Retailer 2
-
$6,061 NZD
$3,416 USD
View
Final sale: no returns
B+
Retailer 3
-
$7,245 NZD
HK$31,900 HKD
View
B+
Retailer 4
-
$8,834 NZD
$4,979 USD
View
B+
Retailer 5
-
$8,836 NZD
$4,980 USD
View
B+
Retailer 6
-
$9,753 NZD
$5,497 USD
View
B
Retailer 7
-
$16,556 NZD
$9,331 USD
View
Most Expensive
B
Brilliant Earth
8432317A · Oct 31
$32,275 NZD
$18,190 USD
View
7 more retailers have this diamond
Prices start from $5,041 NZDSave up to $27,234 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
13.26ct Round
$5,041 NZD