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Radiant|Natural|GIA

1.70ct D SI1 Radiant Natural Diamond

VG • D/SI1 • GIA 12555259

Certificate GIA 12555259

Diamond specifications and retailer prices

From $16,320 CAD
A$17,974 AUD
As of October 30, 2026
Save $3,654 CAD (18%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $19,975 CAD at 77 Diamonds · As of October 30, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 12555259. Listed at 2 retailers as of October 30, 2026, with prices from $16,320 to $19,975, a $3,654 spread on the same certified stone. 77 Diamonds lists it at $19,975. 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
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 12555259
Dimensions7.66 × 6.24 × 4.16 mm
L/W Ratio1.23
Top View
7.66 mm6.24 mm1.70 ctD / SI1
OriginNatural
CutVery Good
PolishGood
SymmetryGood
FluorescenceMedium
CertificateGIA 12555259
Side View
Table 71.0%CrownGirdlePavilionCuletDepth 66.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: $19,975 CAD|Low: $19,617 CAD|High: $20,076 CAD|Avg: $19,901 CAD|+1.8%
October 30, 2026
77 Diamonds$19,975 CAD

33 data points across 1 retailer

2 retailers$16,320 CAD to $19,975 CAD

B
Cheapest Retailer
-
$16,320 CAD
A$17,974 AUD
Most Expensive
C
77 Diamonds
RADMBK5NZMZPW · Oct 30
$19,975 CAD
£11,259 GBP
View
1 more retailer has this diamond
Prices start from $16,320 CADSave up to $3,654 CAD

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
$16,320 CAD