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Oval|Natural|GIA

1.51ct H SI1 Oval Natural Diamond

VG • H/SI1 • GIA 1543780428

Certificate GIA 1543780428

Diamond specifications and retailer prices

From $6,599 SGD
As of November 4, 2026
Save $8,323 SGD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $14,922 SGD at NZ Jewellers · As of October 20, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1543780428. Listed at 20 retailers as of November 2, 2026, with a 126% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1543780428
Dimensions8.94 × 6.33 × 3.98 mm
L/W Ratio1.41
Top View
8.94 mm6.33 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1543780428
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NDepth 62.8%

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 4
Current: $14,922 SGD|Low: $6,599 SGD|High: $14,922 SGD|Avg: $9,055 SGD
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
Retailer 15
Retailer 16
Retailer 17
November 5, 2026
Retailer 8$6,599 SGD
Retailer 6$7,049 SGD
Retailer 17$7,199 SGD
Retailer 4$7,460 SGD
Retailer 3$7,517 SGD
Retailer 7$8,083 SGD
Retailer 13$8,083 SGD
Retailer 14$8,083 SGD
Retailer 11$8,389 SGD
Retailer 2$8,471 SGD
Retailer 5$8,749 SGD
Retailer 9$9,129 SGD
Retailer 16$9,326 SGD
Retailer 12$9,708 SGD
Retailer 15$10,962 SGD
Retailer 10$13,108 SGD
NZ Jewellers$14,922 SGD

32 data points across 17 retailers

20 retailers$6,599 SGD to $14,922 SGD

B+
Cheapest Retailer
-
$6,599 SGD
B+
Retailer 2
-
$7,049 SGD
View
B+
Retailer 3
-
$7,199 SGD
View
B+
Retailer 4
-
$7,460 SGD
View
Final sale: no returns
B+
Retailer 5
-
$7,517 SGD
View
B+
Retailer 6
-
$8,083 SGD
View
B+
Retailer 7
-
$8,083 SGD
View
Retailer 8
-
$8,083 SGD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
$8,389 SGD
View
B+
Retailer 10
-
$8,471 SGD
View
Retailer 11
-
$8,749 SGD
View
Price last confirmed 34 days ago
B
Retailer 12
-
$9,129 SGD
View
B
Retailer 13
-
$9,326 SGD
View
Retailer 14
-
$9,326 SGD
View
Price last confirmed 17 days ago
B
Retailer 15
-
$9,708 SGD
View
B
Retailer 16
-
$9,776 SGD
View
B
Retailer 17
-
$10,962 SGD
View
B
Retailer 18
-
$13,108 SGD
View
C
Retailer 19
-
$14,922 SGD
View
Most Expensive
NZ Jewellers
ba9e204b-b270-448a-8ee8-1eb3b6cd3702 · Oct 20
$14,922 SGD
$11,643 USD
View
Price last confirmed 17 days ago
19 more retailers have this diamond
Prices start from $6,599 SGDSave up to $8,323 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
$6,599 SGD