Round|Natural|GIA

1.60ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2507839323

Certificate GIA 2507839323

Diamond specifications and retailer prices

From €5,549 EUR
$6,199 USD
As of October 30, 2026
Save €4,239 EUR (43%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €11,746 EUR at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.6ct natural round diamond

This 1.6ct natural round 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 and certified by GIA 2507839323. Listed at 18 retailers as of October 30, 2026, with a 76% 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

1.60
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2507839323
Dimensions7.46 × 7.41 × 4.60 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
7.46 mm7.41 mm1.60 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2507839323
Side View
Table 59.0%Crown 36°Girdle: ThickPavilion 40.6°Culet: NoneDepth 61.8%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: €11,746 EUR|Low: €4,894 EUR|High: €11,746 EUR|Avg: €7,482 EUR
NZ Jewellers
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
November 1, 2026
Retailer 3€5,482 EUR
Retailer 4€5,873 EUR
Retailer 5€5,890 EUR
Retailer 6€6,362 EUR
Retailer 9€6,576 EUR
Retailer 14€6,771 EUR
Retailer 11€7,044 EUR
Retailer 12€7,044 EUR
Retailer 7€7,224 EUR
Retailer 13€7,277 EUR
Retailer 2€7,640 EUR
Retailer 10€8,629 EUR
Retailer 8€9,788 EUR
NZ Jewellers€11,746 EUR

38 data points across 14 retailers

18 retailers€5,549 EUR to €9,788 EUR

Retailer 1
-
€5,482 EUR
$6,125 USD
Price last confirmed 14 days ago
B+
Retailer 2
-
€5,549 EUR
$6,199 USD
View
Retailer 3
-
€5,873 EUR
$6,561 USD
View
Price last confirmed 16 days ago
B+
Retailer 4
-
€5,890 EUR
$6,580 USD
View
Retailer 5
-
€6,362 EUR
$7,108 USD
View
Price last confirmed 12 days ago
Retailer 6
-
€6,461 EUR
$7,218 USD
View
Price last confirmed 16 days ago
B+
Retailer 7
-
€6,576 EUR
£5,785 GBP
View
Retailer 8
-
€6,771 EUR
A$11,638 AUD
View
Price last confirmed 10 days ago
B
Retailer 9
-
€7,044 EUR
$7,870 USD
View
B
Retailer 10
-
€7,044 EUR
$7,870 USD
View
B+
Retailer 11
-
€7,224 EUR
£6,355 GBP
View
B+
Retailer 12
-
€7,277 EUR
$8,130 USD
View
Retailer 13
-
€7,342 EUR
$8,202 USD
View
Price last confirmed 11 days ago
B
Retailer 14
-
€7,640 EUR
View
Retailer 15
-
€7,737 EUR
$8,644 USD
View
Price last confirmed 17 days ago
B
Retailer 16
-
€8,629 EUR
ZAR 155,738 ZAR
View
B
Retailer 17
-
€9,788 EUR
£8,610 GBP
View
Most Expensive
NZ Jewellers
718acebf-4c80-42b3-a339-20d5808f87ce · Oct 20
€11,746 EUR
$13,123 USD
View
Price last confirmed 11 days ago
17 more retailers have this diamond
Prices start from €5,549 EURSave up to €4,239 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.

B+
1.60ct Round
€5,549 EUR