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Radiant|Natural|GIA

1.70ct D SI2 Radiant Natural Diamond

GD • D/SI2 • GIA 6415685458

Certificate GIA 6415685458

Diamond specifications and retailer prices

From £2,881 GBP
$3,860 USD
As of October 30, 2026
Save £2,775 GBP (49%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £5,656 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.7ct natural radiant diamond

This 1.7ct natural radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6415685458. Listed at 6 retailers as of October 29, 2026, with prices from £2,881 to £5,656, a £2,775 spread on the same certified stone. MOH London lists it at £5,656. 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

1.70
Carat
D
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle49.2°
Pavilion angle57.3°
OriginNatural
Grading LabGIA
CertificateGIA 6415685458
Dimensions6.47 × 6.43 × 4.53 mm
L/W Ratio1.01
Top View
6.47 mm6.43 mm1.70 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6415685458
Side View
Table 65.0%Crown 49.2°Girdle: 4.5Pavilion 57.3°Culet: NoneDepth 70.4%

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: £5,656 GBP|Low: £2,881 GBP|High: £5,693 GBP|Avg: £4,037 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 6£2,881 GBP
Retailer 4£3,520 GBP
Retailer 5£3,619 GBP
Retailer 2£3,779 GBP
Retailer 3£4,095 GBP
MOH London£5,656 GBP

41 data points across 6 retailers

6 retailers£2,881 GBP to £5,656 GBP

A
Cheapest Retailer
-
£2,881 GBP
$3,860 USD
Final sale: no returns
A
Retailer 2
-
£3,520 GBP
View
B+
Retailer 3
-
£3,619 GBP
$4,849 USD
View
A
Retailer 4
-
£3,779 GBP
View
B+
Retailer 5
-
£4,095 GBP
€5,225 EUR
View
Most Expensive
B+
MOH London
43B8B2F79 · Oct 29
£5,656 GBP
View
5 more retailers have this diamond
Prices start from £2,881 GBPSave up to £2,775 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
1.70ct Radiant
£2,881 GBP