Radiant|Lab Grown|GIA

1.59ct E SI1 Radiant Lab Grown Diamond

E/SI1 • GIA 5231066495

Certificate GIA 5231066495

Diamond specifications and retailer prices

This diamond has been sold
Last seen: Oct 23, 2026 at $1,515 USD
$1,515 USDlast known price
€1,443 EUR

About this 1.59ct lab-grown radiant diamond

This 1.59ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included) and certified by GIA 5231066495. 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

1.59
Carat
E
Color
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 5231066495
Dimensions8.30 × 5.80 × 3.88 mm
L/W Ratio1.43
Girdle conditionPolished
Top View
8.30 mm5.80 mm1.59 ctE / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231066495
Side View
Table 62.0%CrownGirdle: ThickPavilionCulet: NoneDepth 66.8%

Caratlytics Score

Price History

Last verified: Oct 23
Current: $1,515 USD|Low: $1,150 USD|High: $1,520 USD|Avg: $1,387 USD|+31.8%
October 18, 2026
Yorxs$1,515 USD

29 data points across 1 retailer

Historical Listings

Yorxs
358149639 · Oct 23
$1,515 USD
€1,443 EUR
View

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1.59ct E SI1 Radiant Lab-Grown Diamond (Sold), GIA 5231066495