Radiant|Natural|GIA

1.70ct D SI1 Radiant Natural Diamond

VG • D/SI1 • GIA 1216442789

Certificate GIA 1216442789

Diamond specifications and retailer prices

From $14,823 AUD
$10,412 USD
As of November 1, 2026
Save $11,543 AUD (44%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $26,365 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 1216442789. Listed at 9 retailers as of October 30, 2026, with prices from $14,823 to $26,365, a $11,543 spread on the same certified stone. NZ Jewellers lists it at $26,365. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1216442789
Dimensions7.55 × 6.08 × 4.06 mm
L/W Ratio1.24
Culet sizeNone
Top View
7.55 mm6.08 mm1.70 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1216442789
Side View
Table 71.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 66.9%

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: Nov 1
Current: $26,365 AUD|Low: $14,823 AUD|High: $27,682 AUD|Avg: $20,149 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7$14,823 AUD
Retailer 11$15,819 AUD
Retailer 9$17,137 AUD
Retailer 2$17,275 AUD
Retailer 6$17,401 AUD
Retailer 8$17,913 AUD
Retailer 10$19,774 AUD
Retailer 5$19,933 AUD
Retailer 4$24,704 AUD
NZ Jewellers$26,365 AUD
Retailer 3$27,682 AUD

44 data points across 11 retailers

9 retailers$14,823 AUD to $26,365 AUD

B+
Cheapest Retailer
-
$14,823 AUD
$10,412 USD
B
Retailer 2
-
$17,137 AUD
$12,038 USD
View
B+
Retailer 3
-
$17,275 AUD
£9,555 GBP
View
B
Retailer 4
-
$17,401 AUD
$12,223 USD
View
Retailer 5
-
$17,913 AUD
£9,908 GBP
View
Price last confirmed 33 days ago
B
Retailer 6
-
$19,774 AUD
$13,890 USD
View
B
Retailer 7
-
$19,933 AUD
€13,335 EUR
View
B
Retailer 8
-
$24,704 AUD
£13,664 GBP
View
Most Expensive
B
NZ Jewellers
cf157c36-ec14-4619-ae78-03cbb7e0c932 · Oct 30
$26,365 AUD
$18,520 USD
View
8 more retailers have this diamond
Prices start from $14,823 AUDSave up to $11,543 AUD

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
$14,823 AUD