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Oval|Lab Grown|IGI

1.00ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • IGI LG559282840

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG559282840

Diamond specifications and retailer prices

From $149 USD
As of October 29, 2026
Save $716 USD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $865 USD at MOH London · As of October 26, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG559282840 or 559282840. Listed at 13 retailers as of October 26, 2026, with prices from $149 to $865, a $716 spread on the same certified stone. MOH London lists it at $865. 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
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG559282840
Dimensions7.97 × 5.82 × 3.51 mm
L/W Ratio1.37
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.97 mm5.82 mm1.00 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG559282840
Side View
Table 63.5%Crown 34.2°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 60.3%

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: Oct 29
Current: $865 USD|Low: $143 USD|High: $875 USD|Avg: $374 USD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 9$149 USD
Retailer 3$173 USD
Retailer 10$185 USD
Retailer 13$185 USD
Retailer 2$222 USD
Retailer 5$316 USD
Retailer 6$321 USD
Retailer 11$339 USD
Retailer 4$503 USD
Retailer 7$510 USD
Retailer 12$594 USD
Retailer 8$628 USD
MOH London$865 USD

40 data points across 13 retailers

13 retailers$149 USD to $865 USD

A
Cheapest Retailer
-
$149 USD
A
Retailer 2
-
$173 USD
View
A
Retailer 3
-
$185 USD
View
A
Retailer 4
-
$185 USD
View
A
Retailer 5
-
$222 USD
£175 GBP
View
A
Retailer 6
-
$316 USD
View
A
Retailer 7
-
$321 USD
£252 GBP
View
A
Retailer 8
-
$339 USD
View
B+
Retailer 9
-
$503 USD
View
B+
Retailer 10
-
$510 USD
View
B+
Retailer 11
-
$594 USD
View
B
Retailer 12
-
$628 USD
View
Most Expensive
B
MOH London
LG559282840 · Oct 26
$865 USD
£681 GBP
View
12 more retailers have this diamond
Prices start from $149 USDSave up to $716 USD

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
$149 USD