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Round|Natural|GIA

1.60ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2556369395

Certificate GIA 2556369395

Diamond specifications and retailer prices

From $6,451 AUD
HK$35,400 HKD
As of November 1, 2026
Save $6,541 AUD (50%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $12,992 AUD at MOH London · As of November 1, 2026
View at MOH London

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 2556369395. Listed at 14 retailers as of November 1, 2026, with prices from $6,451 to $12,992, a $6,541 spread on the same certified stone. MOH London lists it at $12,992. 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
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2556369395
Dimensions7.46 × 7.41 × 4.64 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle, Indented Natural, Natural
Top View
7.46 mm7.41 mm1.60 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556369395
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.4%

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 1
Current: $12,992 AUD|Low: $6,396 AUD|High: $12,992 AUD|Avg: $8,161 AUD
MOH London
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 2, 2026
Retailer 12$6,451 AUD
Retailer 6$7,174 AUD
Retailer 13$7,692 AUD
Retailer 8$8,122 AUD
Retailer 11$8,136 AUD
Retailer 14$8,140 AUD
Retailer 5$8,285 AUD
Retailer 2$8,819 AUD
Retailer 3$9,038 AUD
Retailer 7$9,070 AUD
Retailer 9$9,595 AUD
Retailer 10$10,835 AUD
Retailer 4$12,528 AUD
MOH London$12,992 AUD

41 data points across 14 retailers

14 retailers$6,451 AUD to $12,992 AUD

A
Cheapest Retailer
-
$6,451 AUD
HK$35,400 HKD
Retailer 2
-
$7,174 AUD
$5,039 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$7,692 AUD
$5,403 USD
View
B+
Retailer 4
-
$8,122 AUD
£4,493 GBP
View
B+
Retailer 5
-
$8,136 AUD
SGD 7,723 SGD
View
B+
Retailer 6
-
$8,140 AUD
$5,718 USD
View
Final sale: no returns
A
Retailer 7
-
$8,285 AUD
$5,820 USD
View
Retailer 8
-
$8,819 AUD
$6,195 USD
View
B+
Retailer 9
-
$9,038 AUD
$6,349 USD
View
B+
Retailer 10
-
$9,070 AUD
£5,017 GBP
View
B+
Retailer 11
-
$9,595 AUD
€6,419 EUR
View
B
Retailer 12
-
$10,835 AUD
ZAR 122,959 ZAR
View
B
Retailer 13
-
$12,528 AUD
$8,800 USD
View
Most Expensive
B
MOH London
E76F662C0 · Nov 1
$12,992 AUD
£7,186 GBP
View
13 more retailers have this diamond
Prices start from $6,451 AUDSave up to $6,541 AUD

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
$6,451 AUD