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Radiant|Natural|GIA

1.70ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 5553653122

Certificate GIA 5553653122

Diamond specifications and retailer prices

From €4,643 EUR
As of November 6, 2026
Save €4,415 EUR (49%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €10,391 EUR at NZ Jewellers · As of October 18, 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 5553653122. Listed at 18 retailers as of November 6, 2026, with a 95% 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
OriginNatural
Grading LabGIA
CertificateGIA 5553653122
Dimensions7.91 × 6.08 × 4.19 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle
Top View
7.91 mm6.08 mm1.70 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5553653122
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.9%

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 6
Current: €9,058 EUR|Low: €4,620 EUR|High: €9,262 EUR|Avg: €6,268 EUR|-2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 9€4,643 EUR
Retailer 5€4,874 EUR
Retailer 8€5,541 EUR
Retailer 2€5,705 EUR
Retailer 3€5,710 EUR
Retailer 4€5,870 EUR
Retailer 10€6,324 EUR
Retailer 6€6,716 EUR
Retailer 7€7,542 EUR
Retailer 1€9,058 EUR

30 data points across 10 retailers

18 retailers€4,643 EUR to €9,058 EUR

A
Cheapest Retailer
-
€4,643 EUR
A
Retailer 2
-
€4,874 EUR
View
A
Retailer 3
-
€5,541 EUR
View
B+
Retailer 4
-
€5,705 EUR
View
Final sale: no returns
B+
Retailer 5
-
€5,710 EUR
View
B+
Retailer 6
-
€5,730 EUR
View
Retailer 7
-
€5,735 EUR
View
Price last confirmed 22 days ago
B+
Retailer 8
-
€5,870 EUR
View
Retailer 9
-
€6,154 EUR
View
Price last confirmed 34 days ago
B+
Retailer 10
-
€6,187 EUR
View
Retailer 11
-
€6,212 EUR
View
Price last confirmed 20 days ago
Retailer 12
-
€6,308 EUR
View
Price last confirmed 22 days ago
B+
Retailer 13
-
€6,324 EUR
View
B+
Retailer 14
-
€6,716 EUR
View
Retailer 15
-
€7,168 EUR
View
Price last confirmed 19 days ago
B
Retailer 16
-
€7,542 EUR
View
B
Retailer 17
-
€9,058 EUR
View
Most Expensive
NZ Jewellers
b99a8c8d-00a3-444e-93bb-a632b137d102 · Oct 18
€10,391 EUR
$11,601 USD
View
Price last confirmed 20 days ago
17 more retailers have this diamond
Prices start from €4,643 EURSave up to €4,415 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
€4,643 EUR