Round|Natural|GIA

1.60ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7556677005

Certificate GIA 7556677005

Diamond specifications and retailer prices

From $4,781 USD
As of October 30, 2026
Save $4,183 USD (47%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $10,551 USD at NZ Jewellers · As of September 19, 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 7556677005. Listed at 22 retailers as of October 29, 2026, with a 87% 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
FluorescenceFaint
Crown angle34°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7556677005
Dimensions7.50 × 7.46 × 4.61 mm
L/W Ratio1.01
Key to symbols
Crystal, Needle, Feather, Natural
Top View
7.50 mm7.46 mm1.60 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7556677005
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.6%

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: Oct 30
Current: $5,865 USD|Low: $4,737 USD|High: $9,406 USD|Avg: $6,312 USD|-1.0%
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
October 31, 2026
Retailer 3$4,781 USD
Retailer 4$5,060 USD
Retailer 10$5,135 USD
Retailer 2$5,419 USD
Retailer 1$5,865 USD
Retailer 12$6,130 USD
Retailer 13$6,130 USD
Retailer 6$6,142 USD
Retailer 5$6,204 USD
Retailer 7$6,614 USD
Retailer 11$6,674 USD
Retailer 14$6,840 USD
Retailer 9$7,370 USD
Retailer 8$8,964 USD

40 data points across 14 retailers

22 retailers$4,781 USD to $8,964 USD

A
Cheapest Retailer
-
$4,781 USD
A
Retailer 2
-
$5,060 USD
View
Final sale: no returns
A
Retailer 3
-
$5,135 USD
View
A
Retailer 4
-
$5,419 USD
View
Retailer 5
-
$5,599 USD
View
Price last confirmed 23 days ago
Retailer 6
-
$5,599 USD
View
Price last confirmed 19 days ago
Retailer 7
-
$5,599 USD
View
Price last confirmed 31 days ago
Retailer 8
-
$5,715 USD
View
Price last confirmed 43 days ago
A
Retailer 9
-
$5,865 USD
£4,618 GBP
View
B+
Retailer 10
-
$6,130 USD
View
B+
Retailer 11
-
$6,130 USD
View
Retailer 12
-
$6,142 USD
A$9,449 AUD
View
Price last confirmed 27 days ago
B+
Retailer 13
-
$6,204 USD
View
Retailer 14
-
$6,460 USD
View
Price last confirmed 22 days ago
Retailer 15
-
$6,594 USD
View
Price last confirmed 39 days ago
B+
Retailer 16
-
$6,614 USD
€6,299 EUR
View
Retailer 17
-
$6,674 USD
View
Price last confirmed 8 days ago
B+
Retailer 18
-
$6,840 USD
View
B+
Retailer 19
-
$7,370 USD
ZAR 119,060 ZAR
View
B
Retailer 20
-
$8,964 USD
£7,058 GBP
View
Retailer 21
-
$10,337 USD
View
Price last confirmed 28 days ago
Most Expensive
NZ Jewellers
c95d298a-f4aa-4ac8-9058-92dd055e0e43 · Sep 19
$10,551 USD
View
Price last confirmed 41 days ago
21 more retailers have this diamond
Prices start from $4,781 USDSave up to $4,183 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.

A
1.60ct Round
$4,781 USD