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Radiant|Natural|GIA

1.50ct L SI2 Radiant Natural Diamond

EX • L/SI2 • GIA 6552178015

Certificate GIA 6552178015

Diamond specifications and retailer prices

From £1,339 GBP
As of November 6, 2026
Save £814 GBP (38%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,153 GBP at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552178015. Listed at 3 retailers as of November 6, 2026, with prices from £1,339 to £2,153, a £814 spread on the same certified stone. 77 Diamonds lists it at £2,153. 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

1.50
Carat
L
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552178015
Dimensions7.69 × 5.69 × 3.80 mm
L/W Ratio1.35
Top View
7.69 mm5.69 mm1.50 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552178015
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £2,153 GBP|Low: £1,329 GBP|High: £2,410 GBP|Avg: £1,721 GBP|-9.0%
77 Diamonds
Retailer 2
Retailer 3
November 7, 2026
Retailer 3£1,339 GBP
Retailer 2£1,364 GBP
77 Diamonds£2,153 GBP

46 data points across 3 retailers

3 retailers£1,339 GBP to £2,153 GBP

A
Cheapest Retailer
-
£1,339 GBP
A
Retailer 2
-
£1,364 GBP
View
Most Expensive
B
77 Diamonds
RADCPTCEBKYBM · Nov 7
£2,153 GBP
View
2 more retailers have this diamond
Prices start from £1,339 GBPSave up to £814 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
1.50ct Radiant
£1,339 GBP