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Round|Natural|GIA

1.55ct M SI1 Round Natural Diamond

GD • M/SI1 • GIA 6127528766

Certificate GIA 6127528766

Diamond specifications and retailer prices

From $6,335 CAD
As of November 4, 2026
Save $2,528 CAD (29%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $8,863 CAD at Cape Diamonds · As of November 5, 2026
View at Cape 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 M colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade and certified by GIA 6127528766. Listed at 7 retailers as of November 4, 2026, with prices from $6,335 to $8,863, a $2,528 spread on the same certified stone. Cape Diamonds lists it at $8,863. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
M
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle37.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6127528766
Dimensions7.17 × 7.20 × 4.69 mm
L/W Ratio1.00
Key to symbols
Feather, Crystal, Indented Natural
Top View
7.17 mm7.20 mm1.55 ctM / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6127528766
Side View
Table 59.0%Crown 37.5°Girdle: STK-THKPavilion 41.8°Culet: NoneDepth 65.3%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $8,863 CAD|Low: $6,335 CAD|High: $8,929 CAD|Avg: $7,473 CAD|+1.4%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5$6,335 CAD
Retailer 4$6,751 CAD
Retailer 3$7,706 CAD
Retailer 2$7,909 CAD
Cape Diamonds$8,863 CAD

39 data points across 5 retailers

7 retailers$6,335 CAD to $8,863 CAD

B
Cheapest Retailer
-
$6,335 CAD
B
Retailer 2
-
$6,751 CAD
View
B
Retailer 3
-
$6,822 CAD
View
C
Retailer 4
-
$7,476 CAD
View
C
Retailer 5
-
$7,706 CAD
View
C
Retailer 6
-
$7,909 CAD
View
Most Expensive
C
Cape Diamonds
cert_6127528766 · Nov 5
$8,863 CAD
ZAR 102,521 ZAR
View
6 more retailers have this diamond
Prices start from $6,335 CADSave up to $2,528 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.

B
1.55ct Round
$6,335 CAD