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Round|Natural|GIA

1.60ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1557994945

Certificate GIA 1557994945

Diamond specifications and retailer prices

From $5,822 USD
As of October 31, 2026
Save $4,729 USD (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $10,551 USD at NZ Jewellers · As of October 30, 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 1557994945. Listed at 14 retailers as of October 30, 2026, with prices from $5,822 to $10,551, a $4,729 spread on the same certified stone. NZ Jewellers lists it at $10,551. 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
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1557994945
Dimensions7.44 × 7.48 × 4.68 mm
L/W Ratio1.01
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.44 mm7.48 mm1.60 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1557994945
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

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 31
Current: $10,551 USD|Low: $5,337 USD|High: $10,551 USD|Avg: $7,016 USD
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
October 31, 2026
Retailer 5$5,822 USD
Retailer 6$6,011 USD
Retailer 3$6,020 USD
Retailer 4$6,236 USD
Retailer 9$6,308 USD
Retailer 12$6,308 USD
Retailer 13$6,308 USD
Retailer 8$6,508 USD
Retailer 7$6,893 USD
Retailer 11$7,279 USD
Retailer 2$7,754 USD
Retailer 10$9,343 USD
NZ Jewellers$10,551 USD

32 data points across 13 retailers

14 retailers$5,822 USD to $10,551 USD

A
Cheapest Retailer
-
$5,822 USD
Final sale: no returns
A
Retailer 2
-
$6,011 USD
£4,733 GBP
View
B+
Retailer 3
-
$6,020 USD
View
Retailer 4
-
$6,236 USD
A$9,594 AUD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
$6,308 USD
View
B+
Retailer 6
-
$6,308 USD
View
B+
Retailer 7
-
$6,308 USD
View
B+
Retailer 8
-
$6,508 USD
£5,124 GBP
View
B+
Retailer 9
-
$6,550 USD
View
B+
Retailer 10
-
$6,893 USD
€6,565 EUR
View
B+
Retailer 11
-
$7,279 USD
View
B+
Retailer 12
-
$7,754 USD
ZAR 125,273 ZAR
View
B
Retailer 13
-
$9,343 USD
£7,357 GBP
View
Most Expensive
B
NZ Jewellers
a88faf37-89a2-4091-8991-4ed7a9662110 · Oct 30
$10,551 USD
View
13 more retailers have this diamond
Prices start from $5,822 USDSave up to $4,729 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
$5,822 USD