Radiant|Natural|GIA

1.70ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 6542405819

Certificate GIA 6542405819

Diamond specifications and retailer prices

From $7,717 USD
As of October 30, 2026
Save $8,767 USD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $16,484 USD 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542405819. Listed at 15 retailers as of October 30, 2026, with prices from $7,717 to $16,484, a $8,767 spread on the same certified stone. NZ Jewellers lists it at $16,484. 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
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542405819
Dimensions7.80 × 5.99 × 4.17 mm
L/W Ratio1.30
Culet sizeNone
Top View
7.80 mm5.99 mm1.70 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542405819
Side View
Table 68.0%CrownGirdle: ThickPavilionCulet: NoneDepth 69.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $13,735 USD|Low: $7,717 USD|High: $13,901 USD|Avg: $9,762 USD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 9$7,717 USD
Retailer 10$8,200 USD
Retailer 3$8,242 USD
Retailer 11$8,311 USD
Retailer 2$9,066 USD
Retailer 8$9,108 USD
Retailer 5$9,130 USD
Retailer 4$9,287 USD
Retailer 7$10,202 USD
Retailer 6$12,108 USD
Retailer 1$13,735 USD

39 data points across 11 retailers

15 retailers$7,717 USD to $16,484 USD

B+
Cheapest Retailer
-
$7,717 USD
B+
Retailer 2
-
$8,200 USD
View
B+
Retailer 3
-
$8,242 USD
View
B+
Retailer 4
-
$8,311 USD
View
B+
Retailer 5
-
$8,929 USD
View
B+
Retailer 6
-
$9,066 USD
View
Retailer 7
-
$9,108 USD
A$14,012 AUD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$9,130 USD
£7,189 GBP
View
B+
Retailer 9
-
$9,287 USD
£7,313 GBP
View
B
Retailer 10
-
$10,202 USD
€9,716 EUR
View
B
Retailer 11
-
$10,302 USD
View
Retailer 12
-
$10,850 USD
View
Price last confirmed 9 days ago
B
Retailer 13
-
$12,108 USD
ZAR 195,607 ZAR
View
B
Retailer 14
-
$13,735 USD
£10,815 GBP
View
Most Expensive
B
NZ Jewellers
1d54afd2-dea2-45ca-b8fb-7682312c287a · Oct 30
$16,484 USD
View
14 more retailers have this diamond
Prices start from $7,717 USDSave up to $8,767 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.

B+
1.70ct Radiant
$7,717 USD