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Round|Natural|GIA

1.55ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 7531110751

Certificate GIA 7531110751

Diamond specifications and retailer prices

From $7,394 CAD
A$8,143 AUD
As of October 30, 2026
Save $1,921 CAD (21%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $9,316 CAD at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

About this 1.55ct natural round diamond

This 1.55ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7531110751. Listed at 4 retailers as of October 30, 2026, with prices from $7,394 to $9,316, a $1,921 spread on the same certified stone. 77 Diamonds lists it at $9,316. 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

1.55
Carat
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7531110751
Dimensions7.53 × 7.55 × 4.46 mm
L/W Ratio1.00
Star length45%
Lower girdle75%
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
7.53 mm7.55 mm1.55 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7531110751
Side View
Table 61.0%Crown 33°GirdlePavilion 40.8°Culet: NoneDepth 59.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $9,316 CAD|Low: $7,584 CAD|High: $9,376 CAD|Avg: $8,694 CAD|+1.8%
77 Diamonds
Retailer 2
Retailer 3
October 30, 2026
Retailer 3$7,584 CAD
Retailer 2$9,289 CAD
77 Diamonds$9,316 CAD

37 data points across 3 retailers

4 retailers$7,394 CAD to $9,316 CAD

A
Cheapest Retailer
-
$7,394 CAD
A$8,143 AUD
B+
Retailer 2
-
$7,584 CAD
View
B+
Retailer 3
-
$9,289 CAD
€6,333 EUR
View
Most Expensive
B+
77 Diamonds
RBMB7GHGAEUP · Oct 30
$9,316 CAD
£5,251 GBP
View
3 more retailers have this diamond
Prices start from $7,394 CADSave up to $1,921 CAD

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
1.55ct Round
$7,394 CAD