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Radiant|Natural|GIA

1.70ct D I1 Radiant Natural Diamond

VG • D/I1 • GIA 1528956397

Certificate GIA 1528956397

Diamond specifications and retailer prices

From $12,081 NZD
$6,809 USD
As of October 31, 2026
Save $15,128 NZD (56%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $27,209 NZD 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 I1 clarity (included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1528956397. Listed at 10 retailers as of October 30, 2026, with prices from $12,081 to $27,209, a $15,128 spread on the same certified stone. NZ Jewellers lists it at $27,209. 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
I1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle45.2°
Pavilion angle57.5°
OriginNatural
Grading LabGIA
CertificateGIA 1528956397
Dimensions8.66 × 5.89 × 4.10 mm
L/W Ratio1.47
Girdle conditionFaceted
Culet sizeNone
Cert comments
Pinpoints are not shown.
Key to symbols
Crystal, Indented Natural, Natural
Top View
8.66 mm5.89 mm1.70 ctD / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1528956397
Side View
Table 69.0%Crown 45.2°Girdle: THK-VTKPavilion 57.5°Culet: NoneDepth 69.6%

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: $17,775 NZD|Low: $12,081 NZD|High: $19,393 NZD|Avg: $15,907 NZD|+3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 2$12,081 NZD
Retailer 5$12,738 NZD
Retailer 7$15,969 NZD
Retailer 8$15,969 NZD
Retailer 6$16,501 NZD
Retailer 3$17,005 NZD
Retailer 1$17,775 NZD
Retailer 4$19,393 NZD

16 data points across 8 retailers

10 retailers$12,081 NZD to $27,209 NZD

A
Cheapest Retailer
-
$12,081 NZD
$6,809 USD
B+
Retailer 2
-
$12,738 NZD
$7,179 USD
View
B+
Retailer 3
-
$13,605 NZD
$7,668 USD
View
B+
Retailer 4
-
$14,737 NZD
$8,306 USD
View
B
Retailer 5
-
$15,969 NZD
$9,000 USD
View
B
Retailer 6
-
$15,969 NZD
$9,000 USD
View
B
Retailer 7
-
$16,501 NZD
$9,300 USD
View
B
Retailer 8
-
$17,005 NZD
$9,584 USD
View
B+
Retailer 9
-
$17,775 NZD
€9,541 EUR
View
Most Expensive
B
NZ Jewellers
bf1a819c-bc56-4b11-b6b6-94e92404df65 · Oct 30
$27,209 NZD
$15,335 USD
View
9 more retailers have this diamond
Prices start from $12,081 NZDSave up to $15,128 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
$12,081 NZD