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Radiant|Natural|GIA

1.70ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 6555036797

Certificate GIA 6555036797

Diamond specifications and retailer prices

From $19,290 NZD
A$16,726 AUD
As of November 1, 2026
Save $4,368 NZD (18%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $23,658 NZD at 77 Diamonds · As of November 1, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555036797. Listed at 3 retailers as of November 1, 2026, with prices from $19,290 to $23,658, a $4,368 spread on the same certified stone. 77 Diamonds lists it at $23,658. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.70
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6555036797
Dimensions8.59 × 5.88 × 3.87 mm
L/W Ratio1.46
Top View
8.59 mm5.88 mm1.70 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6555036797
Side View
Table 67.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 65.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $23,658 NZD|Low: $13,486 NZD|High: $24,012 NZD|Avg: $17,725 NZD|+1.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 3$13,486 NZD
Retailer 8$15,284 NZD
Retailer 6$16,182 NZD
Retailer 7$16,840 NZD
Retailer 9$17,672 NZD
Retailer 4$18,077 NZD
Retailer 5$18,715 NZD
Retailer 2$19,471 NZD
77 Diamonds$23,658 NZD

36 data points across 9 retailers

3 retailers$19,290 NZD to $23,658 NZD

B
Cheapest Retailer
-
$19,290 NZD
A$16,726 AUD
B
Retailer 2
-
$19,471 NZD
CA$15,242 CAD
View
Most Expensive
B
77 Diamonds
RADMBVAM2Y3CV · Nov 1
$23,658 NZD
£10,499 GBP
View
2 more retailers have this diamond
Prices start from $19,290 NZDSave up to $4,368 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.

B
1.70ct Radiant
$19,290 NZD