Radiant|Natural|GIA

1.70ct K SI2 Radiant Natural Diamond

EX • K/SI2 • GIA 5231988896

Certificate GIA 5231988896

Diamond specifications and retailer prices

From $3,405 USD
As of November 6, 2026
Save $3,790 USD (53%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,290 USD at NZ Jewellers · As of September 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 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 5231988896. Listed at 13 retailers as of November 2, 2026, with a 111% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 5231988896
Dimensions8.00 × 5.92 × 4.00 mm
L/W Ratio1.35
Girdle conditionPolished
Top View
8.00 mm5.92 mm1.70 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231988896
Side View
Table 67.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.6%

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: $4,576 USD|Low: $3,370 USD|High: $7,592 USD|Avg: $4,621 USD|+3.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 10$3,405 USD
Retailer 8$3,430 USD
Retailer 5$3,643 USD
Retailer 3$3,778 USD
Retailer 11$3,802 USD
Retailer 9$4,129 USD
Retailer 7$4,180 USD
Retailer 1$4,576 USD
Retailer 4$5,084 USD
Retailer 2$7,022 USD
Retailer 6$7,195 USD

35 data points across 11 retailers

13 retailers$3,405 USD to $7,195 USD

A
Cheapest Retailer
-
$3,405 USD
A
Retailer 2
-
$3,430 USD
View
A
Retailer 3
-
$3,643 USD
View
A
Retailer 4
-
$3,778 USD
View
Final sale: no returns
A
Retailer 5
-
$3,802 USD
View
A
Retailer 6
-
$4,129 USD
View
A
Retailer 7
-
$4,180 USD
View
B+
Retailer 8
-
$4,576 USD
View
B+
Retailer 9
-
$4,626 USD
View
B+
Retailer 10
-
$5,084 USD
View
B
Retailer 11
-
$7,022 USD
View
B
Retailer 12
-
$7,195 USD
View
Most Expensive
NZ Jewellers
d10b7ccd-f3b3-46f0-9bfe-4f703594e72c · Sep 30
$8,290 USD
View
Price last confirmed 37 days ago
12 more retailers have this diamond
Prices start from $3,405 USDSave up to $3,790 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
$3,405 USD