Round|Lab Grown|GIA

1.39ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • GIA 2506354106

Certificate GIA 2506354106

Diamond specifications and retailer prices

From €434 EUR
$485 USD
As of October 30, 2026
Save €304 EUR (41%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €738 EUR at GemTrove · As of October 31, 2026
View at GemTrove

About this 1.39ct lab-grown round diamond

This 1.39ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2506354106. Listed at 5 retailers as of October 30, 2026, with prices from €434 to €738, a €304 spread on the same certified stone. GemTrove lists it at €738. 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

1.39
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.4°
OriginLab Grown
Grading LabGIA
CertificateGIA 2506354106
Dimensions7.27 × 7.30 × 4.38 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
7.27 mm7.30 mm1.39 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2506354106
Side View
Table 59.0%Crown 32.5°Girdle: THN-MEDPavilion 41.4°Culet: NoneDepth 60.2%

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: Oct 30
Current: €738 EUR|Low: €434 EUR|High: €1,779 EUR|Avg: €996 EUR
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 6€434 EUR
Retailer 5€584 EUR
Retailer 4€633 EUR
Retailer 2€720 EUR
GemTrove€738 EUR
Retailer 3€993 EUR
Retailer 9€1,038 EUR
Retailer 11€1,038 EUR
Retailer 8€1,396 EUR
Retailer 7€1,629 EUR
Retailer 10€1,779 EUR

17 data points across 11 retailers

5 retailers€434 EUR to €738 EUR

A
Cheapest Retailer
-
€434 EUR
$485 USD
B+
Retailer 2
-
€584 EUR
HK$5,100 HKD
View
B+
Retailer 3
-
€633 EUR
$707 USD
View
B
Retailer 4
-
€720 EUR
View
Most Expensive
B
GemTrove
GT-L-01079195-98 · Oct 31
€738 EUR
A$1,268 AUD
View
4 more retailers have this diamond
Prices start from €434 EURSave up to €304 EUR

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
1.39ct Round
€434 EUR