Radiant|Natural|GIA

1.70ct K SI2 Radiant Natural Diamond

EX • K/SI2 • GIA 6545455122

Certificate GIA 6545455122

Diamond specifications and retailer prices

From $2,835 USD
As of November 6, 2026
Save $2,681 USD (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,516 USD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545455122. Listed at 12 retailers as of November 5, 2026, with prices from $2,835 to $5,516, a $2,681 spread on the same certified stone. NZ Jewellers lists it at $5,516. 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
K
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545455122
Dimensions7.59 × 5.94 × 4.13 mm
L/W Ratio1.28
Top View
7.59 mm5.94 mm1.70 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545455122
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.5%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $5,516 USD|Low: $2,835 USD|High: $5,519 USD|Avg: $3,676 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 3$2,835 USD
Retailer 5$3,155 USD
Retailer 9$3,166 USD
Retailer 11$3,166 USD
Retailer 12$3,171 USD
Retailer 2$3,275 USD
Retailer 10$3,288 USD
Retailer 4$3,460 USD
Retailer 8$3,653 USD
Retailer 6$3,684 USD
Retailer 7$5,280 USD
NZ Jewellers$5,516 USD

33 data points across 12 retailers

12 retailers$2,835 USD to $5,516 USD

A
Cheapest Retailer
-
$2,835 USD
A
Retailer 2
-
$3,155 USD
View
Retailer 3
-
$3,166 USD
View
Price last confirmed 9 days ago
A
Retailer 4
-
$3,166 USD
View
A
Retailer 5
-
$3,171 USD
View
A
Retailer 6
-
$3,275 USD
View
A
Retailer 7
-
$3,288 USD
View
B+
Retailer 8
-
$3,460 USD
View
B+
Retailer 9
-
$3,653 USD
View
A
Retailer 10
-
$3,684 USD
View
B+
Retailer 11
-
$5,280 USD
View
Most Expensive
B
NZ Jewellers
25ec3faa-35a7-46a1-aee0-798c37acd31b · Nov 5
$5,516 USD
View
11 more retailers have this diamond
Prices start from $2,835 USDSave up to $2,681 USD

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
$2,835 USD