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Oval|Natural|GIA

1.51ct D SI2 Oval Natural Diamond

VG • D/SI2 • GIA 6521445078

Certificate GIA 6521445078

Diamond specifications and retailer prices

From $5,511 SGD
$4,311 USD
As of October 30, 2026
Save $5,659 SGD (51%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,158 SGD at NZ Jewellers · As of September 29, 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 D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6521445078. Listed at 15 retailers as of October 29, 2026, with a 103% 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
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6521445078
Dimensions8.66 × 6.32 × 4.18 mm
L/W Ratio1.37
Top View
8.66 mm6.32 mm1.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6521445078
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $6,593 SGD|Low: $5,263 SGD|High: $11,717 SGD|Avg: $7,041 SGD|-5.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 9$5,511 SGD
Retailer 11$5,553 SGD
Retailer 2$5,625 SGD
Retailer 8$6,263 SGD
Retailer 7$6,319 SGD
Retailer 1$6,593 SGD
Retailer 3$6,754 SGD
Retailer 4$6,806 SGD
Retailer 10$7,059 SGD
Retailer 6$7,446 SGD
Retailer 5$11,170 SGD

41 data points across 11 retailers

15 retailers$5,511 SGD to $11,170 SGD

A
Cheapest Retailer
-
$5,511 SGD
$4,311 USD
A
Retailer 2
-
$5,553 SGD
$4,344 USD
View
Final sale: no returns
Retailer 3
-
$5,625 SGD
$4,400 USD
View
Price last confirmed 32 days ago
A
Retailer 4
-
$6,263 SGD
$4,899 USD
View
A
Retailer 5
-
$6,319 SGD
$4,943 USD
View
Retailer 6
-
$6,585 SGD
$5,151 USD
View
Price last confirmed 31 days ago
Retailer 7
-
$6,585 SGD
$5,151 USD
View
Price last confirmed 32 days ago
A
Retailer 8
-
$6,593 SGD
£4,061 GBP
View
A
Retailer 9
-
$6,754 SGD
A$8,128 AUD
View
A
Retailer 10
-
$6,806 SGD
£4,192 GBP
View
A
Retailer 11
-
$7,059 SGD
$5,522 USD
View
A
Retailer 12
-
$7,446 SGD
€5,547 EUR
View
Retailer 13
-
$7,599 SGD
$5,944 USD
View
Price last confirmed 31 days ago
B+
Retailer 14
-
$11,170 SGD
£6,880 GBP
View
Most Expensive
NZ Jewellers
3ca13b80-03f2-44a9-9ecc-1ae90fe81a62 · Sep 29
$12,158 SGD
$9,510 USD
View
Price last confirmed 31 days ago
14 more retailers have this diamond
Prices start from $5,511 SGDSave up to $5,659 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.

A
1.51ct Oval
$5,511 SGD