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Oval|Lab Grown|IGI

1.00ct K SI2 Oval Lab Grown Diamond

ID • K/SI2 • IGI LG451057625

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451057625

Diamond specifications and retailer prices

From $649 NZD
As of November 5, 2026
Save $2,489 NZD (79%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,139 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 1ct lab-grown oval diamond

This 1ct lab-grown oval sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451057625 or 451057625. Listed at 8 retailers as of November 5, 2026, with prices from $649 to $3,139, a $2,489 spread on the same certified stone. MOH London lists it at $3,139. 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

1.00
Carat
K
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057625
Dimensions8.00 × 5.64 × 3.42 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.00 mm5.64 mm1.00 ctK / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057625
Side View
Table 61.0%Crown 34.7°Girdle: STK-THKPavilion 40.7°Culet: NoneDepth 60.6%

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 5
Current: $3,139 NZD|Low: $624 NZD|High: $3,184 NZD|Avg: $1,501 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 4$649 NZD
Retailer 7$754 NZD
Retailer 5$806 NZD
Retailer 9$806 NZD
Retailer 6$1,290 NZD
Retailer 2$1,306 NZD
Retailer 10$1,539 NZD
Retailer 3$2,361 NZD
Retailer 8$2,589 NZD
MOH London$3,139 NZD

21 data points across 10 retailers

8 retailers$649 NZD to $3,139 NZD

A
Cheapest Retailer
-
$649 NZD
B+
Retailer 2
-
$754 NZD
View
Retailer 3
-
$806 NZD
View
Price last confirmed 12 days ago
B+
Retailer 4
-
$806 NZD
View
B+
Retailer 5
-
$1,290 NZD
View
B
Retailer 6
-
$2,361 NZD
View
B
Retailer 7
-
$2,589 NZD
View
Most Expensive
B
MOH London
LG451057625 · Nov 5
$3,139 NZD
£1,370 GBP
View
7 more retailers have this diamond
Prices start from $649 NZDSave up to $2,489 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
1.00ct Oval
$649 NZD