Radiant|Natural|GIA

1.70ct D SI1 Radiant Natural Diamond

GD • D/SI1 • GIA 3395551770

Certificate GIA 3395551770

Diamond specifications and retailer prices

From $11,044 AUD
$7,758 USD
As of November 1, 2026
Save $3,462 AUD (24%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $20,228 AUD at MOH London · As of October 8, 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 3395551770. Listed at 15 retailers as of October 30, 2026, with a 31% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle49.3°
Pavilion angle60.9°
OriginNatural
Grading LabGIA
CertificateGIA 3395551770
Dimensions6.43 × 6.39 × 4.45 mm
L/W Ratio1.01
Top View
6.43 mm6.39 mm1.70 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3395551770
Side View
Table 65.0%Crown 49.3°Girdle: 4.2Pavilion 60.9°Culet: NoneDepth 69.7%

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: $20,228 AUD|Low: $10,784 AUD|High: $20,282 AUD|Avg: $14,133 AUD|+4.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 9$11,044 AUD
Retailer 14$11,762 AUD
Retailer 10$11,909 AUD
Retailer 7$12,014 AUD
Retailer 12$12,190 AUD
Retailer 5$12,727 AUD
Retailer 11$13,173 AUD
Retailer 6$13,681 AUD
Retailer 3$14,037 AUD
Retailer 8$14,037 AUD
Retailer 15$14,239 AUD
Retailer 2$14,451 AUD
Retailer 17$14,506 AUD
Retailer 13$16,029 AUD
Retailer 16$16,330 AUD
Retailer 4$18,500 AUD
MOH London$20,228 AUD

43 data points across 17 retailers

15 retailers$11,044 AUD to $14,506 AUD

B+
Cheapest Retailer
-
$11,044 AUD
$7,758 USD
B+
Retailer 2
-
$11,572 AUD
CA$11,290 CAD
View
B+
Retailer 3
-
$11,909 AUD
$8,365 USD
View
Retailer 4
-
$12,014 AUD
$8,439 USD
View
Price last confirmed 27 days ago
B+
Retailer 5
-
$12,190 AUD
$8,563 USD
View
B+
Retailer 6
-
$13,173 AUD
$9,253 USD
View
Retailer 7
-
$13,681 AUD
$9,610 USD
View
Price last confirmed 25 days ago
B
Retailer 8
-
$14,037 AUD
$9,860 USD
View
B
Retailer 9
-
$14,037 AUD
$9,860 USD
View
Retailer 10
-
$14,239 AUD
View
Price last confirmed 28 days ago
B
Retailer 11
-
$14,451 AUD
£7,993 GBP
View
B
Retailer 12
-
$14,506 AUD
$10,190 USD
View
Retailer 13
-
$16,330 AUD
£9,032 GBP
View
Price last confirmed 23 days ago
Retailer 14
-
$18,500 AUD
ZAR 209,943 ZAR
View
Price last confirmed 32 days ago
Most Expensive
MOH London
3313FA129 · Oct 8
$20,228 AUD
£11,188 GBP
View
Price last confirmed 24 days ago
14 more retailers have this diamond
Prices start from $11,044 AUDSave up to $3,462 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
$11,044 AUD