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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 $5,746 SGD
$4,495 USD
As of November 1, 2026
Save $5,508 SGD (49%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $11,255 SGD 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 26 retailers as of October 29, 2026, with prices from $5,746 to $11,255, a $5,508 spread on the same certified stone. MOH London lists it at $11,255. 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
Colour
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: Nov 1
Current: $11,255 SGD|Low: $5,936 SGD|High: $11,345 SGD|Avg: $7,712 SGD|+0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
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Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
November 2, 2026
Retailer 11$5,936 SGD
Retailer 9$6,003 SGD
Retailer 24$6,004 SGD
Retailer 12$6,079 SGD
Retailer 10$6,354 SGD
Retailer 6$6,450 SGD
Retailer 8$6,807 SGD
Retailer 7$6,884 SGD
Retailer 19$6,884 SGD
Retailer 23$6,971 SGD
Retailer 22$7,004 SGD
Retailer 17$7,050 SGD
Retailer 15$7,213 SGD
Retailer 2$7,311 SGD
Retailer 18$7,412 SGD
Retailer 4$7,696 SGD
Retailer 14$7,696 SGD
Retailer 16$7,792 SGD
Retailer 21$7,943 SGD
Retailer 5$7,952 SGD
Retailer 13$8,114 SGD
Retailer 20$9,336 SGD
Retailer 3$11,008 SGD
MOH London$11,255 SGD

34 data points across 24 retailers

26 retailers$5,746 SGD to $11,255 SGD

B+
Cheapest Retailer
-
$5,746 SGD
$4,495 USD
B+
Retailer 2
-
$5,936 SGD
$4,643 USD
View
B+
Retailer 3
-
$6,003 SGD
$4,696 USD
View
B+
Retailer 4
-
$6,004 SGD
$4,697 USD
View
B+
Retailer 5
-
$6,079 SGD
$4,755 USD
View
B+
Retailer 6
-
$6,255 SGD
A$7,527 AUD
View
B+
Retailer 7
-
$6,274 SGD
$4,908 USD
View
B+
Retailer 8
-
$6,354 SGD
$4,970 USD
View
Final sale: no returns
B+
Retailer 9
-
$6,450 SGD
$5,045 USD
View
B
Retailer 10
-
$6,807 SGD
$5,325 USD
View
B+
Retailer 11
-
$6,884 SGD
$5,385 USD
View
B
Retailer 12
-
$6,884 SGD
$5,385 USD
View
B
Retailer 13
-
$7,004 SGD
$5,479 USD
View
Retailer 14
-
$7,050 SGD
A$8,484 AUD
View
Price last confirmed 23 days ago
B
Retailer 15
-
$7,213 SGD
$5,642 USD
View
B+
Retailer 16
-
$7,311 SGD
£4,503 GBP
View
B
Retailer 17
-
$7,412 SGD
£4,565 GBP
View
B
Retailer 18
-
$7,696 SGD
$6,020 USD
View
B
Retailer 19
-
$7,696 SGD
$6,020 USD
View
B
Retailer 20
-
$7,792 SGD
$6,095 USD
View
B
Retailer 21
-
$7,943 SGD
$6,213 USD
View
B
Retailer 22
-
$7,952 SGD
$6,220 USD
View
B
Retailer 23
-
$8,114 SGD
€6,045 EUR
View
B
Retailer 24
-
$9,336 SGD
ZAR 117,978 ZAR
View
B
Retailer 25
-
$11,008 SGD
$8,611 USD
View
Most Expensive
B
MOH London
23DAD2790 · Oct 29
$11,255 SGD
£6,932 GBP
View
25 more retailers have this diamond
Prices start from $5,746 SGDSave up to $5,508 SGD

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
$5,746 SGD