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Oval|Lab Grown|IGI

1.01ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • IGI LG557240926

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG557240926

Diamond specifications and retailer prices

From $150 USD
As of November 3, 2026
Save $483 USD (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $876 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.01ct lab-grown oval diamond

This 1.01ct 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 LG557240926 or 557240926. Listed at 13 retailers as of November 3, 2026, with a 322% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.01
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG557240926
Dimensions8.04 × 5.74 × 3.63 mm
L/W Ratio1.40
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
8.04 mm5.74 mm1.01 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG557240926
Side View
Table 59.5%Crown 35.5°Girdle: STK-THKPavilion 41.6°Culet: NoneDepth 63.2%

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 3
Current: $876 USD|Low: $144 USD|High: $881 USD|Avg: $377 USD|-0.6%
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
November 5, 2026
Retailer 9$150 USD
Retailer 3$174 USD
Retailer 10$186 USD
Retailer 13$186 USD
Retailer 2$221 USD
Retailer 6$320 USD
Retailer 5$321 USD
Retailer 11$342 USD
Retailer 7$470 USD
Retailer 4$505 USD
Retailer 12$599 USD
Retailer 8$633 USD
MOH London$876 USD

44 data points across 13 retailers

13 retailers$150 USD to $633 USD

A
Cheapest Retailer
-
$150 USD
A
Retailer 2
-
$174 USD
View
Retailer 3
-
$186 USD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$186 USD
View
A
Retailer 5
-
$221 USD
View
A
Retailer 6
-
$320 USD
View
A
Retailer 7
-
$321 USD
View
A
Retailer 8
-
$342 USD
View
B+
Retailer 9
-
$470 USD
View
B+
Retailer 10
-
$505 USD
View
B+
Retailer 11
-
$599 USD
View
B
Retailer 12
-
$633 USD
View
Most Expensive
MOH London
LG557240926 · Oct 29
$876 USD
£690 GBP
View
Price last confirmed 8 days ago
12 more retailers have this diamond
Prices start from $150 USDSave up to $483 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
1.01ct Oval
$150 USD