Oval|Natural|GIA

1.51ct F SI1 Oval Natural Diamond

ID • F/SI1 • GIA 6531369634

Certificate GIA 6531369634

Diamond specifications and retailer prices

From $11,071 SGD
$8,657 USD
As of November 2, 2026
Save $8,923 SGD (45%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $19,994 SGD at NZ Jewellers · As of November 2, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6531369634. Listed at 16 retailers as of November 2, 2026, with prices from $11,071 to $19,994, a $8,923 spread on the same certified stone. NZ Jewellers lists it at $19,994. 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
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6531369634
Dimensions9.60 × 6.16 × 3.93 mm
L/W Ratio1.56
Top View
9.60 mm6.16 mm1.51 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6531369634
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $19,994 SGD|Low: $10,941 SGD|High: $19,994 SGD|Avg: $14,405 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
November 3, 2026
Retailer 3$11,071 SGD
Retailer 12$11,887 SGD
Retailer 7$11,997 SGD
Retailer 14$12,097 SGD
Retailer 5$12,996 SGD
Retailer 2$13,001 SGD
Retailer 15$13,057 SGD
Retailer 8$13,197 SGD
Retailer 10$13,422 SGD
Retailer 9$13,756 SGD
Retailer 6$14,996 SGD
Retailer 11$15,112 SGD
Retailer 13$17,625 SGD
Retailer 4$18,737 SGD
NZ Jewellers$19,994 SGD

40 data points across 15 retailers

16 retailers$11,071 SGD to $19,994 SGD

B+
Cheapest Retailer
-
$11,071 SGD
$8,657 USD
B+
Retailer 2
-
$11,233 SGD
$8,783 USD
View
B+
Retailer 3
-
$11,887 SGD
$9,295 USD
View
B+
Retailer 4
-
$12,097 SGD
$9,459 USD
View
B
Retailer 5
-
$12,793 SGD
$10,003 USD
View
B
Retailer 6
-
$12,996 SGD
$10,162 USD
View
B+
Retailer 7
-
$13,001 SGD
£8,005 GBP
View
Retailer 8
-
$13,057 SGD
A$15,707 AUD
View
Our latest check could not confirm this price
B
Retailer 9
-
$13,197 SGD
$10,319 USD
View
B
Retailer 10
-
$13,422 SGD
£8,264 GBP
View
B
Retailer 11
-
$13,756 SGD
$10,756 USD
View
B
Retailer 12
-
$14,996 SGD
$11,726 USD
View
B
Retailer 13
-
$15,112 SGD
€11,254 EUR
View
B
Retailer 14
-
$17,625 SGD
ZAR 222,636 ZAR
View
B
Retailer 15
-
$18,737 SGD
£11,536 GBP
View
Most Expensive
B
NZ Jewellers
ef70bf24-57fa-4a5e-9bde-f717cf668600 · Nov 2
$19,994 SGD
$15,634 USD
View
15 more retailers have this diamond
Prices start from $11,071 SGDSave up to $8,923 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
$11,071 SGD