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Oval|Lab Grown|IGI

10.51ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG598338536

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG598338536

Diamond specifications and retailer prices

From $4,195 NZD
£1,859 GBP
As of November 2, 2026
Save $22,749 NZD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $26,944 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 10.51ct lab-grown oval diamond

This 10.51ct 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 LG598338536 or 598338536. Listed at 11 retailers as of October 31, 2026, with prices from $4,195 to $26,944, a $22,749 spread on the same certified stone. Brilliant Earth lists it at $26,944. 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

10.51
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598338536
Dimensions17.56 × 12.40 × 7.79 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
17.56 mm12.40 mm10.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598338536
Side View
Table 61.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

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: $29,237 NZD|Low: $3,360 NZD|High: $35,727 NZD|Avg: $14,201 NZD
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
Retailer 16
November 2, 2026
Retailer 2$4,195 NZD
Retailer 10$4,260 NZD
Retailer 14$5,367 NZD
Retailer 6$5,483 NZD
Retailer 5$6,320 NZD
Retailer 9$6,420 NZD
Retailer 11$6,462 NZD
Retailer 4$7,250 NZD
Retailer 3$9,425 NZD
Retailer 15$10,591 NZD
Retailer 12$16,424 NZD
Retailer 16$18,082 NZD
Retailer 13$20,172 NZD
Retailer 7$26,634 NZD
Brilliant Earth$29,237 NZD
Retailer 8$35,727 NZD

12 data points across 16 retailers

11 retailers$4,195 NZD to $26,944 NZD

A
Cheapest Retailer
-
$4,195 NZD
£1,859 GBP
A
Retailer 2
-
$4,260 NZD
$2,397 USD
View
B+
Retailer 3
-
$5,367 NZD
$3,020 USD
View
B+
Retailer 4
-
$6,420 NZD
£2,844 GBP
View
B+
Retailer 5
-
$6,462 NZD
$3,636 USD
View
B
Retailer 6
-
$9,425 NZD
$5,303 USD
View
B
Retailer 7
-
$10,591 NZD
$5,959 USD
View
B
Retailer 8
-
$16,424 NZD
$9,241 USD
View
B
Retailer 9
-
$18,082 NZD
$10,174 USD
View
B
Retailer 10
-
$20,172 NZD
$11,350 USD
View
Most Expensive
B
Brilliant Earth
22301488A · Oct 31
$26,944 NZD
$15,160 USD
View
10 more retailers have this diamond
Prices start from $4,195 NZDSave up to $22,749 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
10.51ct Oval
$4,195 NZD