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Radiant|Natural|GIA

1.61ct D SI1 Radiant Natural Diamond

VG • D/SI1 • GIA 3145597325

Certificate GIA 3145597325

Diamond specifications and retailer prices

From £5,950 GBP
$7,973 USD
As of October 31, 2026
Save £1,940 GBP (25%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £7,890 GBP at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 1.61ct natural radiant diamond

This 1.61ct natural radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3145597325. Listed at 6 retailers as of October 31, 2026, with prices from £5,950 to £7,890, a £1,940 spread on the same certified stone. 77 Diamonds lists it at £7,890. 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

1.61
Carat
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3145597325
Dimensions6.86 × 6.14 × 4.40 mm
L/W Ratio1.12
Top View
6.86 mm6.14 mm1.61 ctD / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 3145597325
Side View
Table 72.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 71.6%

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: £7,890 GBP|Low: £5,877 GBP|High: £7,941 GBP|Avg: £6,682 GBP|+1.8%
77 Diamonds
Retailer 2
Retailer 3
November 1, 2026
Retailer 2£5,950 GBP
Retailer 3£6,228 GBP
77 Diamonds£7,890 GBP

37 data points across 3 retailers

6 retailers£5,950 GBP to £7,890 GBP

B+
Cheapest Retailer
-
£5,950 GBP
$7,973 USD
B+
Retailer 2
-
£6,156 GBP
$8,249 USD
View
B+
Retailer 3
-
£6,228 GBP
$8,345 USD
View
B+
Retailer 4
-
£6,308 GBP
A$13,004 AUD
View
B+
Retailer 5
-
£6,504 GBP
$8,715 USD
View
Most Expensive
B
77 Diamonds
RADMBBBCUVYHM · Nov 1
£7,890 GBP
View
5 more retailers have this diamond
Prices start from £5,950 GBPSave up to £1,940 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+
1.61ct Radiant
£5,950 GBP