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Radiant|Natural|IGI

1.57ct I SI1 Radiant Natural Diamond

VG • I/SI1 • IGI 770664057

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 770664057

Diamond specifications and retailer prices

From €2,442 EUR
As of November 6, 2026
Save €2,993 EUR (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €5,436 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.57ct natural radiant diamond

This 1.57ct 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 very-good cut grade and certified by IGI 770664057. Listed at 15 retailers as of November 5, 2026, with prices from €2,442 to €5,436, a €2,993 spread on the same certified stone. NZ Jewellers lists it at €5,436. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.57
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle35.2°
OriginNatural
Grading LabIGI
CertificateIGI 770664057
Dimensions7.67 × 5.83 × 4.03 mm
L/W Ratio1.32
Girdle conditionFaceted
Culet sizePointed
Top View
7.67 mm5.83 mm1.57 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 770664057
Side View
Table 72.0%Crown 40.8°Girdle: MED-STKPavilion 35.2°Culet: NoneDepth 69.1%

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: €5,190 EUR|Low: €2,442 EUR|High: €5,273 EUR|Avg: €3,527 EUR|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 3€2,442 EUR
Retailer 4€2,944 EUR
Retailer 2€3,287 EUR
Retailer 5€3,633 EUR
Retailer 6€3,808 EUR
Retailer 1€5,190 EUR

28 data points across 6 retailers

15 retailers€2,442 EUR to €5,436 EUR

A
Cheapest Retailer
-
€2,442 EUR
A
Retailer 2
-
€2,770 EUR
View
Retailer 3
-
€2,911 EUR
View
Price last confirmed 95 days ago
A
Retailer 4
-
€2,944 EUR
View
B+
Retailer 5
-
€3,005 EUR
View
B+
Retailer 6
-
€3,120 EUR
View
Retailer 7
-
€3,120 EUR
View
Price last confirmed 9 days ago
B+
Retailer 8
-
€3,240 EUR
View
B+
Retailer 9
-
€3,249 EUR
View
A
Retailer 10
-
€3,287 EUR
View
B+
Retailer 11
-
€3,601 EUR
View
A
Retailer 12
-
€3,633 EUR
View
B+
Retailer 13
-
€3,808 EUR
View
B+
Retailer 14
-
€5,190 EUR
View
Most Expensive
B+
NZ Jewellers
0ecf2490-5f9c-44b3-8ce7-9bf1aa529f16 · Nov 5
€5,436 EUR
$6,069 USD
View
14 more retailers have this diamond
Prices start from €2,442 EURSave up to €2,993 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
1.57ct Radiant
€2,442 EUR