Radiant|Natural|GIA

1.70ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 6512913754

Certificate GIA 6512913754

Diamond specifications and retailer prices

From €5,509 EUR
As of November 5, 2026
Save €4,349 EUR (44%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: €11,894 EUR 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 I 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 6512913754. Listed at 28 retailers as of November 5, 2026, with a 79% 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle44.83°
Pavilion angle30.31°
OriginNatural
Grading LabGIA
CertificateGIA 6512913754
Dimensions7.63 × 5.86 × 4.01 mm
L/W Ratio1.30
Top View
7.63 mm5.86 mm1.70 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6512913754
Side View
Table 67.0%Crown 44.83°Girdle: THK-VTKPavilion 30.31°Culet: NoneDepth 68.3%

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: Nov 5
Current: €7,553 EUR|Low: €4,690 EUR|High: €10,030 EUR|Avg: €7,056 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 7, 2026
Retailer 17€5,627 EUR
Retailer 6€5,697 EUR
Retailer 9€5,947 EUR
Retailer 13€6,316 EUR
Retailer 8€6,565 EUR
Retailer 12€6,640 EUR
Retailer 2€6,661 EUR
Retailer 10€6,837 EUR
Retailer 7€6,857 EUR
Retailer 3€7,004 EUR
Retailer 5€7,004 EUR
Retailer 16€7,170 EUR
Retailer 4€7,237 EUR
Retailer 14€7,326 EUR
Retailer 1€7,553 EUR
Retailer 15€8,676 EUR
Retailer 11€9,859 EUR

37 data points across 17 retailers

28 retailers€5,509 EUR to €9,859 EUR

A
Cheapest Retailer
-
€5,509 EUR
A
Retailer 2
-
€5,524 EUR
View
B+
Retailer 3
-
€5,618 EUR
View
A
Retailer 4
-
€5,627 EUR
View
B+
Retailer 5
-
€5,697 EUR
View
B+
Retailer 6
-
€5,947 EUR
View
Final sale: no returns
B+
Retailer 7
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€5,961 EUR
View
B+
Retailer 8
-
€6,316 EUR
View
B+
Retailer 9
-
€6,331 EUR
View
Retailer 10
-
€6,443 EUR
View
Price last confirmed 40 days ago
B+
Retailer 11
-
€6,525 EUR
View
Retailer 12
-
€6,539 EUR
View
Price last confirmed 15 days ago
B+
Retailer 13
-
€6,565 EUR
View
B+
Retailer 14
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€6,640 EUR
View
B+
Retailer 15
-
€6,661 EUR
View
Retailer 16
-
€6,837 EUR
View
Retailer 17
-
€6,857 EUR
View
Price last confirmed 16 days ago
B+
Retailer 18
-
€7,004 EUR
View
B+
Retailer 19
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€7,004 EUR
View
B
Retailer 20
-
€7,170 EUR
View
B
Retailer 21
-
€7,207 EUR
View
B
Retailer 22
-
€7,237 EUR
View
B+
Retailer 23
-
€7,326 EUR
View
Retailer 24
-
€7,434 EUR
View
Price last confirmed 39 days ago
Retailer 25
-
€7,553 EUR
View
B
Retailer 26
-
€8,676 EUR
View
B
Retailer 27
-
€9,859 EUR
View
Most Expensive
NZ Jewellers
c49dc6d8-e438-456d-8d9d-4016756cf5bb · Sep 30
€11,894 EUR
$13,280 USD
View
Price last confirmed 37 days ago
27 more retailers have this diamond
Prices start from €5,509 EURSave up to €4,349 EUR

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
€5,509 EUR