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Oval|Lab Grown|IGI

11.65ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG575382214

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG575382214

Diamond specifications and retailer prices

From $2,958 NZD
£1,310 GBP
As of November 2, 2026
Save $13,534 NZD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $16,492 NZD at Adiamor · As of November 2, 2026
View at Adiamor

About this 11.65ct lab-grown oval diamond

This 11.65ct 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 LG575382214 or 575382214. Listed at 10 retailers as of November 2, 2026, with prices from $2,958 to $16,492, a $13,534 spread on the same certified stone. Adiamor lists it at $16,492. 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

11.65
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG575382214
Dimensions18.28 × 12.84 × 8.07 mm
L/W Ratio1.42
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
18.28 mm12.84 mm11.65 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG575382214
Side View
Table 61.5%Crown 36.1°Girdle: MediumPavilion 41.6°Culet: NoneDepth 62.9%

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: Nov 2
Current: $16,492 NZD|Low: $2,957 NZD|High: $16,492 NZD|Avg: $7,978 NZD
Adiamor
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$2,958 NZD
Retailer 11$3,555 NZD
Retailer 7$3,981 NZD
Retailer 3$4,254 NZD
Retailer 9$5,778 NZD
Retailer 6$6,194 NZD
Retailer 12$6,236 NZD
Retailer 4$8,039 NZD
Retailer 5$9,971 NZD
Retailer 10$12,301 NZD
Retailer 8$15,338 NZD
Adiamor$16,492 NZD

40 data points across 12 retailers

10 retailers$2,958 NZD to $16,492 NZD

A
Cheapest Retailer
-
$2,958 NZD
£1,310 GBP
A
Retailer 2
-
$3,555 NZD
$2,000 USD
View
Final sale: no returns
A
Retailer 3
-
$3,981 NZD
$2,240 USD
View
A
Retailer 4
-
$4,254 NZD
HK$18,700 HKD
View
B+
Retailer 5
-
$5,778 NZD
$3,251 USD
View
B+
Retailer 6
-
$6,194 NZD
$3,485 USD
View
B
Retailer 7
-
$9,971 NZD
$5,610 USD
View
B
Retailer 8
-
$12,301 NZD
SGD 9,353 SGD
View
B
Retailer 9
-
$15,338 NZD
$8,630 USD
View
Most Expensive
B
Adiamor
D-61178980 · Nov 2
$16,492 NZD
$9,279 USD
View
9 more retailers have this diamond
Prices start from $2,958 NZDSave up to $13,534 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
11.65ct Oval
$2,958 NZD