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Radiant|Natural|GIA

1.70ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 6214230586

Certificate GIA 6214230586

Diamond specifications and retailer prices

From £9,151 GBP
$12,261 USD
As of October 31, 2026
Save £2,820 GBP (24%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £11,971 GBP at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6214230586. Listed at 7 retailers as of October 31, 2026, with prices from £9,151 to £11,971, a £2,820 spread on the same certified stone. 77 Diamonds lists it at £11,971. 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

1.70
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6214230586
Dimensions7.57 × 6.01 × 4.13 mm
L/W Ratio1.26
Top View
7.57 mm6.01 mm1.70 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6214230586
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.7%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: £11,971 GBP|Low: £9,046 GBP|High: £12,132 GBP|Avg: £10,436 GBP|+1.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 4£9,151 GBP
Retailer 5£9,922 GBP
Retailer 2£10,132 GBP
Retailer 3£11,221 GBP
77 Diamonds£11,971 GBP

34 data points across 5 retailers

7 retailers£9,151 GBP to £11,971 GBP

B+
Cheapest Retailer
-
£9,151 GBP
$12,261 USD
B+
Retailer 2
-
£9,630 GBP
$12,903 USD
View
B
Retailer 3
-
£9,868 GBP
A$20,341 AUD
View
B
Retailer 4
-
£9,922 GBP
CA$18,465 CAD
View
B
Retailer 5
-
£10,132 GBP
$13,576 USD
View
Final sale: no returns
B
Retailer 6
-
£11,221 GBP
$15,035 USD
View
Most Expensive
B
77 Diamonds
RADMBXQUU5ZTS · Nov 1
£11,971 GBP
View
6 more retailers have this diamond
Prices start from £9,151 GBPSave up to £2,820 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+
1.70ct Radiant
£9,151 GBP