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Oval|Lab Grown|IGI

5.59ct E SI1 Oval Lab Grown Diamond

GD • E/SI1 • IGI LG621431310

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG621431310

Diamond specifications and retailer prices

From $1,192 USD
As of October 28, 2026
Save $2,973 USD (71%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,409 USD at Rare Carat · As of September 9, 2026
View at Rare Carat

About this 5.59ct lab-grown oval diamond

This 5.59ct lab-grown oval sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG621431310 or 621431310. Listed at 6 retailers as of October 28, 2026, with a 249% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

5.59
Carat
E
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621431310
Dimensions14.54 × 9.99 × 6.12 mm
L/W Ratio1.46
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
14.54 mm9.99 mm5.59 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG621431310
Side View
Table 60.0%Crown 35.7°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $4,165 USD|Low: $1,192 USD|High: $4,409 USD|Avg: $2,211 USD|-5.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 6$1,192 USD
Retailer 5$1,345 USD
Retailer 4$1,411 USD
Retailer 2$1,470 USD
Retailer 3$3,617 USD
Rare Carat$4,165 USD

30 data points across 6 retailers

6 retailers$1,192 USD to $4,165 USD

B+
Cheapest Retailer
-
$1,192 USD
B+
Retailer 2
-
$1,345 USD
View
B+
Retailer 3
-
$1,470 USD
£1,157 GBP
View
B
Retailer 4
-
$3,617 USD
£2,848 GBP
View
B
Retailer 5
-
$4,165 USD
View
Most Expensive
Rare Carat
DBS226-103_l_621431310 · Sep 9
$4,409 USD
View
Price last confirmed 50 days ago
5 more retailers have this diamond
Prices start from $1,192 USDSave up to $2,973 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.

B+
5.59ct Oval
$1,192 USD