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Oval|Natural|GIA

1.51ct F SI2 Oval Natural Diamond

VG • F/SI2 • GIA 6555422815

Certificate GIA 6555422815

Diamond specifications and retailer prices

From $6,526 SGD
$5,103 USD
As of October 31, 2026
Save $8,838 SGD (58%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $15,365 SGD at NZ Jewellers · As of October 30, 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 F 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 6555422815. Listed at 24 retailers as of October 30, 2026, with prices from $6,526 to $15,365, a $8,838 spread on the same certified stone. NZ Jewellers lists it at $15,365. 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
F
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.7°
Pavilion angle39.1°
OriginNatural
Grading LabGIA
CertificateGIA 6555422815
Dimensions9.36 × 6.27 × 3.96 mm
L/W Ratio1.49
Girdle conditionFaceted
Top View
9.36 mm6.27 mm1.51 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555422815
Side View
Table 63.0%Crown 38.7°Girdle: MED-THKPavilion 39.1°Culet: NoneDepth 63.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $15,365 SGD|Low: $6,526 SGD|High: $15,824 SGD|Avg: $9,248 SGD|-2.9%
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 2, 2026
Retailer 8$6,526 SGD
Retailer 18$6,875 SGD
Retailer 6$7,005 SGD
Retailer 11$7,258 SGD
Retailer 15$7,331 SGD
Retailer 9$7,393 SGD
Retailer 7$7,682 SGD
Retailer 20$7,682 SGD
Retailer 5$8,322 SGD
Retailer 22$8,450 SGD
Retailer 3$8,645 SGD
Retailer 2$8,655 SGD
Retailer 16$8,809 SGD
Retailer 10$9,246 SGD
Retailer 12$9,246 SGD
Retailer 13$9,479 SGD
Retailer 14$9,553 SGD
Retailer 19$9,602 SGD
Retailer 4$10,124 SGD
Retailer 21$10,519 SGD
Retailer 17$12,802 SGD
NZ Jewellers$15,365 SGD

28 data points across 22 retailers

24 retailers$6,526 SGD to $15,365 SGD

A
Cheapest Retailer
-
$6,526 SGD
$5,103 USD
A
Retailer 2
-
$6,875 SGD
HK$42,000 HKD
View
A
Retailer 3
-
$6,976 SGD
$5,455 USD
View
A
Retailer 4
-
$7,005 SGD
$5,477 USD
View
A
Retailer 5
-
$7,258 SGD
$5,675 USD
View
Retailer 6
-
$7,331 SGD
₹545,968 INR
View
Price last confirmed 18 days ago
A
Retailer 7
-
$7,393 SGD
$5,781 USD
View
A
Retailer 8
-
$7,682 SGD
$6,007 USD
View
B+
Retailer 9
-
$7,682 SGD
$6,007 USD
View
Final sale: no returns
Retailer 10
-
$8,131 SGD
View
Price last confirmed 18 days ago
B+
Retailer 11
-
$8,322 SGD
$6,507 USD
View
B+
Retailer 12
-
$8,450 SGD
$6,607 USD
View
B+
Retailer 13
-
$8,645 SGD
$6,760 USD
View
B+
Retailer 14
-
$8,655 SGD
£5,329 GBP
View
B+
Retailer 15
-
$8,809 SGD
£5,424 GBP
View
B+
Retailer 16
-
$9,111 SGD
$7,124 USD
View
B+
Retailer 17
-
$9,246 SGD
$7,230 USD
View
B+
Retailer 18
-
$9,246 SGD
$7,230 USD
View
B+
Retailer 19
-
$9,479 SGD
€7,059 EUR
View
B+
Retailer 20
-
$9,553 SGD
$7,470 USD
View
B+
Retailer 21
-
$9,602 SGD
$7,508 USD
View
B
Retailer 22
-
$10,519 SGD
$8,225 USD
View
B
Retailer 23
-
$12,802 SGD
£7,882 GBP
View
Most Expensive
B
NZ Jewellers
e8a03823-6f25-4fa2-9408-2eef83175308 · Oct 30
$15,365 SGD
$12,014 USD
View
23 more retailers have this diamond
Prices start from $6,526 SGDSave up to $8,838 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
$6,526 SGD