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Radiant|Natural|GIA

1.51ct D SI2 Radiant Natural Diamond

VG • D/SI2 • GIA 5403884550

Certificate GIA 5403884550

Diamond specifications and retailer prices

From £6,857 GBP
As of October 31, 2026
Save £3,315 GBP (33%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £10,171 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5403884550. Listed at 4 retailers as of October 29, 2026, with prices from £6,857 to £10,171, a £3,315 spread on the same certified stone. MOH London lists it at £10,171. 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

1.51
Carat
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 5403884550
Dimensions6.98 × 5.57 × 4.05 mm
L/W Ratio1.25
Top View
6.98 mm5.57 mm1.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 5403884550
Side View
Table 67.0%CrownGirdle: ThickPavilionCulet: NoneDepth 72.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £10,171 GBP|Low: £6,265 GBP|High: £10,239 GBP|Avg: £7,507 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 4£6,265 GBP
Retailer 5£6,318 GBP
Retailer 2£6,857 GBP
Retailer 3£8,087 GBP
MOH London£10,171 GBP

42 data points across 5 retailers

4 retailers£6,857 GBP to £10,171 GBP

Retailer 1
-
£6,265 GBP
$8,395 USD
Price last confirmed 12 days ago
B+
Retailer 2
-
£6,857 GBP
View
B
Retailer 3
-
£8,087 GBP
€10,320 EUR
View
Most Expensive
B
MOH London
E3B279CFC · Oct 29
£10,171 GBP
View
3 more retailers have this diamond
Prices start from £6,857 GBPSave up to £3,315 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.

B+
1.51ct Radiant
£6,857 GBP