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Oval|Natural|GIA

1.51ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 2556755740

Certificate GIA 2556755740

Diamond specifications and retailer prices

From $6,486 CAD
$4,643 USD
As of October 30, 2026
Save $5,812 CAD (47%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $12,298 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded J 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 2556755740. Listed at 25 retailers as of October 29, 2026, with prices from $6,486 to $12,298, a $5,812 spread on the same certified stone. MOH London lists it at $12,298. 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
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556755740
Dimensions8.77 × 6.26 × 3.93 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Knot, Crystal, Feather, Indented Natural, Needle
Top View
8.77 mm6.26 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556755740
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.7%

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: $12,298 CAD|Low: $6,486 CAD|High: $12,397 CAD|Avg: $8,448 CAD|+0.3%
MOH London
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 11$6,486 CAD
Retailer 9$6,560 CAD
Retailer 24$6,561 CAD
Retailer 12$6,643 CAD
Retailer 10$6,943 CAD
Retailer 6$7,047 CAD
Retailer 8$7,438 CAD
Retailer 7$7,522 CAD
Retailer 13$7,522 CAD
Retailer 23$7,617 CAD
Retailer 22$7,654 CAD
Retailer 17$7,703 CAD
Retailer 15$7,882 CAD
Retailer 21$8,013 CAD
Retailer 2$8,099 CAD
Retailer 4$8,409 CAD
Retailer 14$8,409 CAD
Retailer 16$8,514 CAD
Retailer 20$8,679 CAD
Retailer 5$8,689 CAD
Retailer 19$8,839 CAD
Retailer 18$10,201 CAD
Retailer 3$12,028 CAD
MOH London$12,298 CAD

34 data points across 24 retailers

25 retailers$6,486 CAD to $12,298 CAD

B+
Cheapest Retailer
-
$6,486 CAD
$4,643 USD
B+
Retailer 2
-
$6,560 CAD
$4,696 USD
View
B+
Retailer 3
-
$6,561 CAD
$4,697 USD
View
B+
Retailer 4
-
$6,643 CAD
$4,755 USD
View
B+
Retailer 5
-
$6,835 CAD
A$7,527 AUD
View
B+
Retailer 6
-
$6,856 CAD
$4,908 USD
View
B+
Retailer 7
-
$6,943 CAD
$4,970 USD
View
Final sale: no returns
B+
Retailer 8
-
$7,047 CAD
$5,045 USD
View
B
Retailer 9
-
$7,438 CAD
$5,325 USD
View
B+
Retailer 10
-
$7,522 CAD
$5,385 USD
View
B
Retailer 11
-
$7,522 CAD
$5,385 USD
View
B
Retailer 12
-
$7,654 CAD
$5,479 USD
View
Retailer 13
-
$7,703 CAD
A$8,484 AUD
View
Price last confirmed 22 days ago
B
Retailer 14
-
$7,882 CAD
$5,642 USD
View
B+
Retailer 15
-
$8,013 CAD
£4,517 GBP
View
B
Retailer 16
-
$8,099 CAD
£4,565 GBP
View
B
Retailer 17
-
$8,409 CAD
$6,020 USD
View
B
Retailer 18
-
$8,409 CAD
$6,020 USD
View
B
Retailer 19
-
$8,514 CAD
$6,095 USD
View
B
Retailer 20
-
$8,679 CAD
$6,213 USD
View
B
Retailer 21
-
$8,689 CAD
$6,220 USD
View
B
Retailer 22
-
$8,839 CAD
€6,026 EUR
View
B
Retailer 23
-
$10,201 CAD
ZAR 117,978 ZAR
View
B
Retailer 24
-
$12,028 CAD
$8,611 USD
View
Most Expensive
B
MOH London
23DAD2790 · Oct 29
$12,298 CAD
£6,932 GBP
View
24 more retailers have this diamond
Prices start from $6,486 CADSave up to $5,812 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
$6,486 CAD