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Round|Lab Grown|IGI

13.05ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG616409386

Shape and cutting style on the report: Round brilliant

Certificate IGI LG616409386

Diamond specifications and retailer prices

From $8,008 NZD
£3,548 GBP
As of November 2, 2026
Save $19,711 NZD (71%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $35,742 NZD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 13.05ct lab-grown round diamond

This 13.05ct 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 LG616409386 or 616409386. Listed at 18 retailers as of November 1, 2026, with a 246% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

13.05
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG616409386
Dimensions15.19 × 15.15 × 9.22 mm
L/W Ratio1.00
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
15.19 mm15.15 mm13.05 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG616409386
Side View
Table 58.0%Crown 31.9°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $11,771 NZD|Low: $8,006 NZD|High: $32,738 NZD|Avg: $13,770 NZD|-4.6%
Retailer 1
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 2, 2026
Retailer 8$8,008 NZD
Retailer 12$8,597 NZD
Retailer 11$9,009 NZD
Retailer 5$9,628 NZD
Retailer 13$9,972 NZD
Retailer 2$9,980 NZD
Retailer 7$10,100 NZD
Retailer 1$11,771 NZD
Retailer 15$12,461 NZD
Retailer 10$12,647 NZD
Retailer 4$15,415 NZD
Retailer 9$16,340 NZD
Retailer 14$17,137 NZD
Retailer 6$27,719 NZD
Retailer 3$32,613 NZD

40 data points across 15 retailers

18 retailers$8,008 NZD to $27,719 NZD

B+
Cheapest Retailer
-
$8,008 NZD
£3,548 GBP
B+
Retailer 2
-
$8,597 NZD
$4,837 USD
View
B+
Retailer 3
-
$9,009 NZD
$5,069 USD
View
B+
Retailer 4
-
$9,628 NZD
$5,417 USD
View
Final sale: no returns
Retailer 5
-
$9,972 NZD
$5,611 USD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
$9,972 NZD
$5,611 USD
View
B+
Retailer 7
-
$9,980 NZD
$5,615 USD
View
B+
Retailer 8
-
$10,100 NZD
$5,683 USD
View
B
Retailer 9
-
$11,771 NZD
$6,623 USD
View
B
Retailer 10
-
$12,461 NZD
$7,011 USD
View
Retailer 11
-
$12,566 NZD
$7,070 USD
View
Price last confirmed 54 days ago
B
Retailer 12
-
$12,647 NZD
£5,603 GBP
View
B
Retailer 13
-
$15,415 NZD
$8,673 USD
View
B
Retailer 14
-
$16,340 NZD
€8,756 EUR
View
B
Retailer 15
-
$17,137 NZD
$9,642 USD
View
B
Retailer 16
-
$27,719 NZD
$15,596 USD
View
Retailer 17
-
$32,613 NZD
$18,350 USD
View
Price under review
Most Expensive
Taylor and Hart
SDHFMGV · Oct 31
$35,742 NZD
$20,110 USD
View
Price under review
17 more retailers have this diamond
Prices start from $8,008 NZDSave up to $19,711 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.

B+
13.05ct Round
$8,008 NZD