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Oval|Lab Grown|IGI

1.59ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG615381662

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG615381662

Diamond specifications and retailer prices

From $234 USD
As of October 25, 2026
Save $866 USD (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,100 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.59ct lab-grown oval diamond

This 1.59ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG615381662 or 615381662. Listed at 14 retailers as of October 25, 2026, with prices from $234 to $1,100, a $866 spread on the same certified stone. Brilliant Earth lists it at $1,100. 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

1.59
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG615381662
Dimensions9.44 × 6.64 × 4.13 mm
L/W Ratio1.42
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
9.44 mm6.64 mm1.59 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG615381662
Side View
Table 60.0%Crown 35.3°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.2%

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: Oct 25
Current: $1,100 USD|Low: $189 USD|High: $1,140 USD|Avg: $511 USD|-3.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 5$189 USD
Retailer 4$219 USD
Retailer 6$231 USD
Retailer 8$234 USD
Retailer 12$301 USD
Retailer 14$411 USD
Retailer 2$425 USD
Retailer 10$439 USD
Retailer 11$491 USD
Retailer 13$570 USD
Retailer 3$752 USD
Retailer 9$755 USD
Retailer 7$1,100 USD
Brilliant Earth$1,100 USD

37 data points across 14 retailers

14 retailers$234 USD to $1,100 USD

Retailer 1
-
$189 USD
Price last confirmed 36 days ago
Retailer 2
-
$219 USD
View
Price last confirmed 35 days ago
Retailer 3
-
$231 USD
View
Price last confirmed 32 days ago
A
Retailer 4
-
$234 USD
View
Retailer 5
-
$271 USD
View
Price last confirmed 18 days ago
Retailer 6
-
$301 USD
£237 GBP
View
Price last confirmed 13 days ago
B+
Retailer 7
-
$411 USD
View
A
Retailer 8
-
$425 USD
£335 GBP
View
A
Retailer 9
-
$491 USD
View
A
Retailer 10
-
$570 USD
View
Retailer 11
-
$752 USD
View
Price last confirmed 32 days ago
B
Retailer 12
-
$755 USD
View
B
Retailer 13
-
$1,100 USD
£866 GBP
View
Most Expensive
B
Brilliant Earth
8918584A · Oct 29
$1,100 USD
View
13 more retailers have this diamond
Prices start from $234 USDSave up to $866 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
1.59ct Oval
$234 USD