CaratHunter
Plans
Radiant|Lab Grown|IGI

1.00ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG529265219

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG529265219

Diamond specifications and retailer prices

From $132 USD
As of November 2, 2026
Save $1,232 USD (90%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,364 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG529265219 or 529265219. Listed at 15 retailers as of November 2, 2026, with prices from $132 to $1,364, a $1,232 spread on the same certified stone. MOH London lists it at $1,364. 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
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG529265219
Dimensions7.05 × 5.10 × 3.34 mm
L/W Ratio1.38
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
7.05 mm5.10 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG529265219
Side View
Table 62.0%Crown 39.3°Girdle: MED-STKPavilion 33.6°Culet: NoneDepth 65.5%

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 2
Current: $1,364 USD|Low: $126 USD|High: $1,379 USD|Avg: $396 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 6$132 USD
Retailer 9$147 USD
Retailer 8$163 USD
Retailer 7$218 USD
Retailer 2$275 USD
Retailer 3$289 USD
Retailer 4$310 USD
Retailer 10$409 USD
Retailer 5$554 USD
MOH London$1,364 USD

41 data points across 10 retailers

15 retailers$132 USD to $1,364 USD

A
Cheapest Retailer
-
$132 USD
A
Retailer 2
-
$153 USD
View
Retailer 3
-
$163 USD
View
Price last confirmed 13 days ago
A
Retailer 4
-
$163 USD
View
A
Retailer 5
-
$192 USD
View
B+
Retailer 6
-
$218 USD
View
A
Retailer 7
-
$275 USD
View
A
Retailer 8
-
$281 USD
View
A
Retailer 9
-
$289 USD
View
A
Retailer 10
-
$310 USD
View
B+
Retailer 11
-
$409 USD
View
B
Retailer 12
-
$525 USD
View
B+
Retailer 13
-
$554 USD
View
B
Retailer 14
-
$628 USD
View
Most Expensive
B
MOH London
LG529265219 · Nov 2
$1,364 USD
£1,074 GBP
View
14 more retailers have this diamond
Prices start from $132 USDSave up to $1,232 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 Radiant
$132 USD