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Radiant|Lab Grown|GCAL

3.03ct G SI1 Radiant Lab Grown Diamond

VG • G/SI1 • GCAL 322780073

Shape and cutting style on the report: Radiant brilliant

Certificate GCAL 322780073

Diamond specifications and retailer prices

From £329 GBP
As of November 6, 2026
Save £1,202 GBP (78%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,532 GBP at Riddles Jewelry · As of November 6, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GCAL 322780073. Listed at 9 retailers as of November 6, 2026, with prices from £329 to £1,532, a £1,202 spread on the same certified stone. Riddles Jewelry lists it at £1,532. 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

3.03
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle43.5°
Pavilion angle62.2°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 322780073
Dimensions10.21 × 6.91 × 4.76 mm
L/W Ratio1.48
Culet sizeNone
Top View
10.21 mm6.91 mm3.03 ctG / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGCAL 322780073
Side View
Table 65.0%Crown 43.5°Girdle: THK-VTKPavilion 62.2°Culet: NoneDepth 68.8%

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: Nov 6
Current: £1,062 GBP|Low: £303 GBP|High: £1,532 GBP|Avg: £941 GBP|+8.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Riddles Jewelry
November 6, 2026
Retailer 6£329 GBP
Retailer 7£536 GBP
Retailer 2£580 GBP
Retailer 5£624 GBP
Retailer 1£1,062 GBP
Retailer 4£1,104 GBP
Retailer 8£1,395 GBP
Retailer 3£1,473 GBP
Riddles Jewelry£1,532 GBP

42 data points across 9 retailers

9 retailers£329 GBP to £1,532 GBP

A
Cheapest Retailer
-
£329 GBP
Final sale: no returns
B
Retailer 2
-
£536 GBP
View
B+
Retailer 3
-
£580 GBP
View
A
Retailer 4
-
£624 GBP
View
B
Retailer 5
-
£1,062 GBP
View
B
Retailer 6
-
£1,104 GBP
View
B
Retailer 7
-
£1,395 GBP
View
B
Retailer 8
-
£1,473 GBP
View
Most Expensive
B
Riddles Jewelry
1966654636 · Nov 6
£1,532 GBP
$2,050 USD
View
8 more retailers have this diamond
Prices start from £329 GBPSave up to £1,202 GBP

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
£329 GBP