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Round|Natural|GIA

1.51ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 7553158400

Certificate GIA 7553158400

Diamond specifications and retailer prices

From $10,278 CAD
$7,358 USD
As of October 30, 2026
Save $12,396 CAD (55%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $22,674 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7553158400. Listed at 24 retailers as of October 30, 2026, with prices from $10,278 to $22,674, a $12,396 spread on the same certified stone. NZ Jewellers lists it at $22,674. 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

1.51
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7553158400
Dimensions7.31 × 7.28 × 4.56 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
7.31 mm7.28 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7553158400
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $22,674 CAD|Low: $9,886 CAD|High: $22,674 CAD|Avg: $14,432 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
October 31, 2026
Retailer 9$10,875 CAD
Retailer 3$11,337 CAD
Retailer 11$12,282 CAD
Retailer 10$12,470 CAD
Retailer 7$12,524 CAD
Retailer 2$12,573 CAD
Retailer 5$14,128 CAD
Retailer 12$14,172 CAD
Retailer 4$14,926 CAD
Retailer 8$16,361 CAD
Retailer 6$18,995 CAD
NZ Jewellers$22,674 CAD

41 data points across 12 retailers

24 retailers$10,278 CAD to $22,674 CAD

B+
Cheapest Retailer
-
$10,278 CAD
$7,358 USD
B+
Retailer 2
-
$10,589 CAD
A$11,662 AUD
View
B+
Retailer 3
-
$10,615 CAD
$7,599 USD
View
B+
Retailer 4
-
$10,875 CAD
$7,785 USD
View
Final sale: no returns
B+
Retailer 5
-
$10,918 CAD
$7,816 USD
View
B+
Retailer 6
-
$11,141 CAD
View
B+
Retailer 7
-
$11,280 CAD
$8,075 USD
View
B+
Retailer 8
-
$11,337 CAD
$8,116 USD
View
B+
Retailer 9
-
$12,282 CAD
$8,792 USD
View
B
Retailer 10
-
$12,470 CAD
$8,927 USD
View
Retailer 11
-
$12,524 CAD
A$13,794 AUD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$12,573 CAD
£7,087 GBP
View
B
Retailer 13
-
$12,580 CAD
$9,006 USD
View
B+
Retailer 14
-
$13,029 CAD
$9,327 USD
View
B+
Retailer 15
-
$13,438 CAD
$9,620 USD
View
B+
Retailer 16
-
$13,438 CAD
$9,620 USD
View
B
Retailer 17
-
$13,885 CAD
$9,940 USD
View
B
Retailer 18
-
$14,128 CAD
€9,632 EUR
View
B
Retailer 19
-
$14,172 CAD
$10,145 USD
View
B
Retailer 20
-
$14,466 CAD
$10,356 USD
View
Retailer 21
-
$14,926 CAD
$10,685 USD
View
Price last confirmed 9 days ago
Retailer 22
-
$16,361 CAD
ZAR 189,210 ZAR
View
Price last confirmed 10 days ago
B
Retailer 23
-
$18,995 CAD
£10,707 GBP
View
Most Expensive
B
NZ Jewellers
eb3c1a88-f45c-4c03-a97a-4d4757043811 · Oct 30
$22,674 CAD
$16,232 USD
View
23 more retailers have this diamond
Prices start from $10,278 CADSave up to $12,396 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+
1.51ct Round
$10,278 CAD