CaratHunter
Plans
Radiant|Lab Grown|GCAL

3.03ct H SI1 Radiant Lab Grown Diamond

EX • H/SI1 • GCAL 323000128

Shape and cutting style on the report: Radiant brilliant

Certificate GCAL 323000128

Diamond specifications and retailer prices

From €347 EUR
$388 USD
As of October 30, 2026
Save €1,467 EUR (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €1,814 EUR at Riddles Jewelry · As of October 31, 2026
View at Riddles Jewelry

About this 3.03ct lab-grown radiant diamond

This 3.03ct lab-grown radiant sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GCAL 323000128. Listed at 11 retailers as of October 30, 2026, with prices from €347 to €1,814, a €1,467 spread on the same certified stone. Riddles Jewelry lists it at €1,814. 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

3.03
Carat
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.5°
Pavilion angle56.8°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 323000128
Dimensions9.86 × 6.99 × 4.88 mm
L/W Ratio1.41
Culet sizeNone
Top View
9.86 mm6.99 mm3.03 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGCAL 323000128
Side View
Table 61.0%Crown 40.5°Girdle: THK-VTKPavilion 56.8°Culet: NoneDepth 69.7%

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 30
Current: €1,270 EUR|Low: €307 EUR|High: €1,814 EUR|Avg: €1,052 EUR|+10.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Riddles Jewelry
October 30, 2026
Retailer 8€347 EUR
Retailer 4€388 EUR
Retailer 7€431 EUR
Retailer 10€636 EUR
Retailer 6€735 EUR
Retailer 1€1,270 EUR
Retailer 5€1,308 EUR
Retailer 9€1,527 EUR
Retailer 2€1,655 EUR
Retailer 3€1,754 EUR
Riddles Jewelry€1,814 EUR

31 data points across 11 retailers

11 retailers€347 EUR to €1,814 EUR

A
Cheapest Retailer
-
€347 EUR
$388 USD
A
Retailer 2
-
€388 EUR
$434 USD
View
A
Retailer 3
-
€431 EUR
$481 USD
View
B+
Retailer 4
-
€636 EUR
$710 USD
View
A
Retailer 5
-
€735 EUR
$821 USD
View
B+
Retailer 6
-
€1,270 EUR
£1,117 GBP
View
B+
Retailer 7
-
€1,308 EUR
CA$2,030 CAD
View
B+
Retailer 8
-
€1,527 EUR
$1,706 USD
View
B+
Retailer 9
-
€1,655 EUR
$1,849 USD
View
B+
Retailer 10
-
€1,754 EUR
£1,543 GBP
View
Most Expensive
B
Riddles Jewelry
1966654647 · Oct 31
€1,814 EUR
$2,027 USD
View
10 more retailers have this diamond
Prices start from €347 EURSave up to €1,467 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
3.03ct Radiant
€347 EUR