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Oval|Natural|GIA

1.51ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 2316765230

Certificate GIA 2316765230

Diamond specifications and retailer prices

From $8,381 CAD
$6,000 USD
As of October 31, 2026
Save $10,485 CAD (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $18,867 CAD at NZ Jewellers · As of October 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2316765230. Listed at 22 retailers as of October 30, 2026, with prices from $8,381 to $18,867, a $10,485 spread on the same certified stone. NZ Jewellers lists it at $18,867. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2316765230
Dimensions9.00 × 6.65 × 4.02 mm
L/W Ratio1.35
Top View
9.00 mm6.65 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2316765230
Side View
Table 59.0%CrownGirdle: VTN-MEDPavilionCulet: NoneDepth 60.4%

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 31
Current: $18,867 CAD|Low: $8,381 CAD|High: $18,867 CAD|Avg: $11,872 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
November 2, 2026
Retailer 11$8,381 CAD
Retailer 9$9,006 CAD
Retailer 4$9,433 CAD
Retailer 3$10,220 CAD
Retailer 10$10,376 CAD
Retailer 5$10,640 CAD
Retailer 8$10,809 CAD
Retailer 12$11,791 CAD
Retailer 2$12,321 CAD
Retailer 6$13,858 CAD
Retailer 7$15,805 CAD
NZ Jewellers$18,867 CAD

44 data points across 12 retailers

22 retailers$8,381 CAD to $18,867 CAD

B+
Cheapest Retailer
-
$8,381 CAD
$6,000 USD
B+
Retailer 2
-
$8,742 CAD
$6,258 USD
View
B+
Retailer 3
-
$8,912 CAD
$6,380 USD
View
B+
Retailer 4
-
$9,006 CAD
$6,447 USD
View
Final sale: no returns
B+
Retailer 5
-
$9,042 CAD
$6,473 USD
View
B+
Retailer 6
-
$9,376 CAD
View
B+
Retailer 7
-
$9,433 CAD
$6,753 USD
View
B+
Retailer 8
-
$9,450 CAD
$6,765 USD
View
B+
Retailer 9
-
$9,511 CAD
$6,809 USD
View
B
Retailer 10
-
$10,044 CAD
$7,190 USD
View
B
Retailer 11
-
$10,220 CAD
$7,316 USD
View
B
Retailer 12
-
$10,376 CAD
$7,428 USD
View
B
Retailer 13
-
$10,418 CAD
$7,458 USD
View
B+
Retailer 14
-
$10,640 CAD
£5,997 GBP
View
B+
Retailer 15
-
$10,791 CAD
$7,725 USD
View
Retailer 16
-
$10,809 CAD
A$11,904 AUD
View
Price last confirmed 11 days ago
B
Retailer 17
-
$11,791 CAD
$8,441 USD
View
B
Retailer 18
-
$12,321 CAD
€8,400 EUR
View
B
Retailer 19
-
$12,428 CAD
$8,897 USD
View
B
Retailer 20
-
$13,858 CAD
ZAR 160,262 ZAR
View
B
Retailer 21
-
$15,805 CAD
£8,909 GBP
View
Most Expensive
B
NZ Jewellers
7b5bc6cf-00be-4a75-8a6e-4a63f09f1019 · Oct 30
$18,867 CAD
$13,506 USD
View
21 more retailers have this diamond
Prices start from $8,381 CADSave up to $10,485 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 Oval
$8,381 CAD