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Oval|Natural|GIA

1.51ct H SI1 Oval Natural Diamond

GD • H/SI1 • GIA 6475770998

Certificate GIA 6475770998

Diamond specifications and retailer prices

From $9,426 SGD
As of November 4, 2026
Save $11,167 SGD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $20,593 SGD at NZ Jewellers · As of November 5, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6475770998. Listed at 18 retailers as of November 4, 2026, with prices from $9,426 to $20,593, a $11,167 spread on the same certified stone. NZ Jewellers lists it at $20,593. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6475770998
Dimensions9.46 × 6.29 × 3.95 mm
L/W Ratio1.50
Top View
9.46 mm6.29 mm1.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6475770998
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $11,538 SGD|Low: $9,426 SGD|High: $17,364 SGD|Avg: $12,002 SGD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7$9,426 SGD
Retailer 9$9,640 SGD
Retailer 10$10,253 SGD
Retailer 2$10,382 SGD
Retailer 8$11,372 SGD
Retailer 4$11,382 SGD
Retailer 1$11,538 SGD
Retailer 3$12,744 SGD
Retailer 5$15,020 SGD
Retailer 6$17,112 SGD

38 data points across 10 retailers

18 retailers$9,426 SGD to $20,593 SGD

B
Cheapest Retailer
-
$9,426 SGD
B
Retailer 2
-
$9,640 SGD
View
B
Retailer 3
-
$10,253 SGD
View
Retailer 4
-
$10,296 SGD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$10,382 SGD
View
B
Retailer 6
-
$11,154 SGD
View
B
Retailer 7
-
$11,325 SGD
View
Retailer 8
-
$11,372 SGD
View
Price last confirmed 14 days ago
B
Retailer 9
-
$11,382 SGD
View
B
Retailer 10
-
$11,538 SGD
View
B
Retailer 11
-
$12,214 SGD
View
B
Retailer 12
-
$12,214 SGD
View
B
Retailer 13
-
$12,624 SGD
View
B
Retailer 14
-
$12,744 SGD
View
B
Retailer 15
-
$12,870 SGD
View
B
Retailer 16
-
$15,020 SGD
View
B
Retailer 17
-
$17,112 SGD
View
Most Expensive
C
NZ Jewellers
66cb310d-cb36-4926-a7fc-32f111d9837d · Nov 5
$20,593 SGD
$16,068 USD
View
17 more retailers have this diamond
Prices start from $9,426 SGDSave up to $11,167 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
$9,426 SGD