Oval|Natural|GIA

1.51ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 7518688839

Certificate GIA 7518688839

Diamond specifications and retailer prices

From $11,402 CAD
₹775,845 INR
As of October 30, 2026
Save $8,225 CAD (42%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $20,834 CAD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7518688839. Listed at 21 retailers as of October 29, 2026, with a 72% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7518688839
Dimensions9.69 × 6.38 × 3.91 mm
L/W Ratio1.52
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
9.69 mm6.38 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7518688839
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.4%

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: $20,834 CAD|Low: $11,389 CAD|High: $20,834 CAD|Avg: $15,022 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
October 30, 2026
Retailer 2$11,402 CAD
Retailer 3$12,612 CAD
Retailer 6$12,804 CAD
Retailer 7$13,671 CAD
Retailer 12$13,797 CAD
Retailer 5$13,799 CAD
Retailer 13$13,869 CAD
Retailer 14$15,179 CAD
Retailer 10$15,181 CAD
Retailer 9$15,727 CAD
Retailer 4$16,564 CAD
Retailer 11$18,152 CAD
Retailer 8$19,627 CAD
NZ Jewellers$20,834 CAD

33 data points across 14 retailers

21 retailers$11,402 CAD to $19,627 CAD

A
Cheapest Retailer
-
$11,402 CAD
₹775,845 INR
B+
Retailer 2
-
$12,612 CAD
$9,011 USD
View
B+
Retailer 3
-
$12,804 CAD
$9,148 USD
View
B+
Retailer 4
-
$13,043 CAD
$9,319 USD
View
B+
Retailer 5
-
$13,653 CAD
$9,755 USD
View
B+
Retailer 6
-
$13,671 CAD
£7,691 GBP
View
B+
Retailer 7
-
$13,797 CAD
$9,858 USD
View
Final sale: no returns
Retailer 8
-
$13,799 CAD
$9,859 USD
View
Price last confirmed 18 days ago
Retailer 9
-
$13,869 CAD
A$15,245 AUD
View
Price last confirmed 26 days ago
B+
Retailer 10
-
$14,924 CAD
$10,663 USD
View
Retailer 11
-
$14,948 CAD
$10,680 USD
View
Price last confirmed 38 days ago
Retailer 12
-
$14,948 CAD
$10,680 USD
View
Price last confirmed 22 days ago
B+
Retailer 13
-
$15,181 CAD
$10,847 USD
View
B+
Retailer 14
-
$15,294 CAD
$10,927 USD
View
B+
Retailer 15
-
$15,727 CAD
€10,702 EUR
View
B
Retailer 16
-
$16,564 CAD
$11,835 USD
View
Retailer 17
-
$17,247 CAD
$12,323 USD
View
Price last confirmed 21 days ago
Retailer 18
-
$17,247 CAD
$12,323 USD
View
Price last confirmed 38 days ago
Retailer 19
-
$18,152 CAD
ZAR 209,522 ZAR
View
Price last confirmed 18 days ago
B
Retailer 20
-
$19,627 CAD
£11,042 GBP
View
Most Expensive
NZ Jewellers
2bec4626-2b35-41e2-a961-5fa7ade75aac · Sep 30
$20,834 CAD
$14,886 USD
View
Price last confirmed 30 days ago
20 more retailers have this diamond
Prices start from $11,402 CADSave up to $8,225 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 Oval
$11,402 CAD