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Round|Natural|GIA

1.20ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1543161928

Certificate GIA 1543161928

Diamond specifications and retailer prices

From $4,309 CAD
HK$24,100 HKD
As of October 30, 2026
Save $5,930 CAD (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,239 CAD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1543161928. Listed at 19 retailers as of October 30, 2026, with prices from $4,309 to $10,239, a $5,930 spread on the same certified stone. NZ Jewellers lists it at $10,239. 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

1.20
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1543161928
Dimensions6.76 × 6.72 × 4.23 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather, Needle, Cavity, Natural
Top View
6.76 mm6.72 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1543161928
Side View
Table 57.0%Crown 36.5°Girdle: THN-SLIPavilion 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 30
Current: $10,239 CAD|Low: $4,309 CAD|High: $13,630 CAD|Avg: $7,297 CAD
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
Retailer 14
Retailer 15
Retailer 16
October 30, 2026
Retailer 16$4,309 CAD
Retailer 13$5,171 CAD
Retailer 15$5,424 CAD
Retailer 3$5,560 CAD
Retailer 14$5,588 CAD
Retailer 4$5,664 CAD
Retailer 2$5,672 CAD
Retailer 6$5,877 CAD
Retailer 8$5,877 CAD
Retailer 9$5,975 CAD
Retailer 10$6,550 CAD
Retailer 7$6,782 CAD
Retailer 11$7,157 CAD
Retailer 12$9,843 CAD
NZ Jewellers$10,239 CAD
Retailer 5$13,630 CAD

39 data points across 16 retailers

19 retailers$4,309 CAD to $10,239 CAD

A
Cheapest Retailer
-
$4,309 CAD
HK$24,100 HKD
A
Retailer 2
-
$4,756 CAD
$3,405 USD
View
A
Retailer 3
-
$5,076 CAD
A$5,591 AUD
View
B+
Retailer 4
-
$5,171 CAD
$3,702 USD
View
B+
Retailer 5
-
$5,424 CAD
$3,883 USD
View
Final sale: no returns
B+
Retailer 6
-
$5,481 CAD
SGD 5,302 SGD
View
B+
Retailer 7
-
$5,560 CAD
$3,980 USD
View
B+
Retailer 8
-
$5,588 CAD
$4,000 USD
View
B+
Retailer 9
-
$5,664 CAD
A$6,238 AUD
View
B+
Retailer 10
-
$5,672 CAD
£3,197 GBP
View
B+
Retailer 11
-
$5,877 CAD
$4,207 USD
View
B+
Retailer 12
-
$5,877 CAD
$4,207 USD
View
B+
Retailer 13
-
$5,975 CAD
£3,368 GBP
View
B+
Retailer 14
-
$6,084 CAD
$4,355 USD
View
B+
Retailer 15
-
$6,550 CAD
€4,466 EUR
View
B+
Retailer 16
-
$6,782 CAD
$4,855 USD
View
B+
Retailer 17
-
$7,157 CAD
ZAR 82,767 ZAR
View
B
Retailer 18
-
$9,843 CAD
£5,548 GBP
View
Most Expensive
B
NZ Jewellers
2cfba05b-86f4-4373-9dfc-8950396eabee · Oct 30
$10,239 CAD
$7,330 USD
View
18 more retailers have this diamond
Prices start from $4,309 CADSave up to $5,930 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
1.20ct Round
$4,309 CAD