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Radiant|Natural|GIA

1.70ct D SI2 Radiant Natural Diamond

GD • D/SI2 • GIA 6415685458

Certificate GIA 6415685458

Diamond specifications and retailer prices

From $6,849 NZD
$3,860 USD
As of October 31, 2026
Save $6,525 NZD (49%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $13,374 NZD at MOH London · As of November 1, 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 SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6415685458. Listed at 6 retailers as of October 31, 2026, with prices from $6,849 to $13,374, a $6,525 spread on the same certified stone. MOH London lists it at $13,374. 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
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle49.2°
Pavilion angle57.3°
OriginNatural
Grading LabGIA
CertificateGIA 6415685458
Dimensions6.47 × 6.43 × 4.53 mm
L/W Ratio1.01
Top View
6.47 mm6.43 mm1.70 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6415685458
Side View
Table 65.0%Crown 49.2°Girdle: 4.5Pavilion 57.3°Culet: NoneDepth 70.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $13,374 NZD|Low: $6,849 NZD|High: $13,534 NZD|Avg: $9,597 NZD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 6$6,849 NZD
Retailer 4$8,368 NZD
Retailer 5$8,604 NZD
Retailer 2$8,910 NZD
Retailer 3$9,734 NZD
MOH London$13,374 NZD

41 data points across 6 retailers

6 retailers$6,849 NZD to $13,374 NZD

A
Cheapest Retailer
-
$6,849 NZD
$3,860 USD
Final sale: no returns
A
Retailer 2
-
$8,368 NZD
£3,714 GBP
View
B+
Retailer 3
-
$8,604 NZD
$4,849 USD
View
A
Retailer 4
-
$8,910 NZD
£3,954 GBP
View
B+
Retailer 5
-
$9,734 NZD
€5,225 EUR
View
Most Expensive
B+
MOH London
43B8B2F79 · Nov 1
$13,374 NZD
£5,935 GBP
View
5 more retailers have this diamond
Prices start from $6,849 NZDSave up to $6,525 NZD

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.

A
1.70ct Radiant
$6,849 NZD