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Oval|Lab Grown|IGI

11.25ct H VS1 Oval Lab Grown Diamond

EX • H/VS1 • IGI LG598316444

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG598316444

Diamond specifications and retailer prices

From $3,352 NZD
$1,889 USD
As of November 1, 2026
Save $24,736 NZD (88%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $28,087 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 11.25ct lab-grown oval diamond

This 11.25ct lab-grown oval sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG598316444 or 598316444. Listed at 12 retailers as of October 31, 2026, with prices from $3,352 to $28,087, a $24,736 spread on the same certified stone. Brilliant Earth lists it at $28,087. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

11.25
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598316444
Dimensions18.53 × 12.54 × 7.73 mm
L/W Ratio1.48
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
18.53 mm12.54 mm11.25 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598316444
Side View
Table 59.0%Crown 37.1°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 61.6%

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 1
Current: $28,087 NZD|Low: $3,352 NZD|High: $28,087 NZD|Avg: $8,639 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
November 1, 2026
Retailer 4$3,352 NZD
Retailer 11$3,708 NZD
Retailer 9$4,789 NZD
Retailer 12$4,870 NZD
Retailer 6$5,662 NZD
Retailer 10$5,876 NZD
Retailer 2$6,971 NZD
Retailer 8$8,320 NZD
Retailer 3$9,310 NZD
Retailer 5$9,918 NZD
Retailer 7$18,204 NZD
Brilliant Earth$28,087 NZD

30 data points across 12 retailers

12 retailers$3,352 NZD to $28,087 NZD

A
Cheapest Retailer
-
$3,352 NZD
$1,889 USD
Final sale: no returns
A
Retailer 2
-
$3,708 NZD
$2,090 USD
View
B+
Retailer 3
-
$4,789 NZD
$2,699 USD
View
A
Retailer 4
-
$4,870 NZD
$2,745 USD
View
A
Retailer 5
-
$5,662 NZD
€3,039 EUR
View
A
Retailer 6
-
$5,876 NZD
$3,312 USD
View
B+
Retailer 7
-
$6,971 NZD
A$6,044 AUD
View
B+
Retailer 8
-
$8,320 NZD
$4,689 USD
View
B+
Retailer 9
-
$9,310 NZD
$5,247 USD
View
B+
Retailer 10
-
$9,918 NZD
$5,590 USD
View
B
Retailer 11
-
$18,204 NZD
$10,260 USD
View
Most Expensive
B
Brilliant Earth
17140106A · Oct 31
$28,087 NZD
$15,830 USD
View
11 more retailers have this diamond
Prices start from $3,352 NZDSave up to $24,736 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
11.25ct Oval
$3,352 NZD