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Round|Natural|GIA

1.51ct I SI1 Round Natural Diamond

VG • I/SI1 • GIA 1549280379

Certificate GIA 1549280379

Diamond specifications and retailer prices

From $5,282 CAD
$3,781 USD
As of October 31, 2026
Save $6,792 CAD (56%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $12,073 CAD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct 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 very-good cut grade and certified by GIA 1549280379. Listed at 24 retailers as of October 30, 2026, with prices from $5,282 to $12,073, a $6,792 spread on the same certified stone. NZ Jewellers lists it at $12,073. 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

1.51
Carat
I
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 1549280379
Dimensions7.16 × 7.10 × 4.60 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.16 mm7.10 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1549280379
Side View
Table 55.0%Crown 38.5°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 64.4%

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 31
Current: $12,073 CAD|Low: $5,215 CAD|High: $12,073 CAD|Avg: $7,246 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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
November 1, 2026
Retailer 6$5,282 CAD
Retailer 20$5,400 CAD
Retailer 22$5,590 CAD
Retailer 23$5,705 CAD
Retailer 8$5,745 CAD
Retailer 12$6,037 CAD
Retailer 11$6,174 CAD
Retailer 3$6,188 CAD
Retailer 9$6,540 CAD
Retailer 14$6,540 CAD
Retailer 16$6,540 CAD
Retailer 4$7,012 CAD
Retailer 5$7,012 CAD
Retailer 18$7,160 CAD
Retailer 24$7,236 CAD
Retailer 17$7,322 CAD
Retailer 2$7,425 CAD
Retailer 15$7,546 CAD
Retailer 21$7,715 CAD
Retailer 7$7,968 CAD
Retailer 10$8,400 CAD
Retailer 19$8,874 CAD
Retailer 13$11,498 CAD
NZ Jewellers$12,073 CAD

25 data points across 24 retailers

24 retailers$5,282 CAD to $12,073 CAD

A
Cheapest Retailer
-
$5,282 CAD
$3,781 USD
A
Retailer 2
-
$5,400 CAD
HK$30,200 HKD
View
A
Retailer 3
-
$5,590 CAD
$4,002 USD
View
A
Retailer 4
-
$5,705 CAD
$4,084 USD
View
A
Retailer 5
-
$5,745 CAD
$4,113 USD
View
B+
Retailer 6
-
$6,037 CAD
$4,322 USD
View
Final sale: no returns
A
Retailer 7
-
$6,174 CAD
$4,420 USD
View
A
Retailer 8
-
$6,188 CAD
$4,430 USD
View
B+
Retailer 9
-
$6,540 CAD
$4,682 USD
View
A
Retailer 10
-
$6,540 CAD
$4,682 USD
View
A
Retailer 11
-
$6,540 CAD
$4,682 USD
View
B+
Retailer 12
-
$7,012 CAD
$5,020 USD
View
A
Retailer 13
-
$7,012 CAD
$5,020 USD
View
A
Retailer 14
-
$7,160 CAD
£4,036 GBP
View
A
Retailer 15
-
$7,236 CAD
$5,180 USD
View
Retailer 16
-
$7,322 CAD
A$8,064 AUD
View
Price last confirmed 22 days ago
B+
Retailer 17
-
$7,425 CAD
£4,185 GBP
View
B+
Retailer 18
-
$7,546 CAD
$5,402 USD
View
B+
Retailer 19
-
$7,715 CAD
€5,260 EUR
View
Retailer 20
-
$7,968 CAD
$5,704 USD
View
Price last confirmed 9 days ago
B+
Retailer 21
-
$8,400 CAD
$6,013 USD
View
B+
Retailer 22
-
$8,874 CAD
ZAR 102,624 ZAR
View
B
Retailer 23
-
$11,498 CAD
£6,481 GBP
View
Most Expensive
B
NZ Jewellers
3e2f5f46-1ce4-4305-949f-1309faa1ab4c · Oct 30
$12,073 CAD
$8,643 USD
View
23 more retailers have this diamond
Prices start from $5,282 CADSave up to $6,792 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
1.51ct Round
$5,282 CAD