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Oval|Natural|GIA

1.51ct H SI2 Oval Natural Diamond

ID • H/SI2 • GIA 1548148688

Certificate GIA 1548148688

Diamond specifications and retailer prices

From $7,246 SGD
$5,668 USD
As of October 31, 2026
Save $9,303 SGD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $16,549 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1548148688. Listed at 18 retailers as of October 30, 2026, with prices from $7,246 to $16,549, a $9,303 spread on the same certified stone. NZ Jewellers lists it at $16,549. 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
H
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.14°
Pavilion angle36.64°
OriginNatural
Grading LabGIA
CertificateGIA 1548148688
Dimensions9.13 × 6.40 × 3.82 mm
L/W Ratio1.43
Girdle conditionVery Thick
Key to symbols
Twinning Wisp, Feather, Cavity, Indented Natural
Top View
9.13 mm6.40 mm1.51 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1548148688
Side View
Table 59.0%Crown 39.14°Girdle: STK-VTKPavilion 36.64°Culet: NoneDepth 59.7%

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: Oct 31
Current: $16,549 SGD|Low: $7,173 SGD|High: $16,549 SGD|Avg: $10,044 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 2, 2026
Retailer 4$7,246 SGD
Retailer 13$7,817 SGD
Retailer 7$8,274 SGD
Retailer 12$8,274 SGD
Retailer 14$8,343 SGD
Retailer 5$8,964 SGD
Retailer 15$9,102 SGD
Retailer 3$9,132 SGD
Retailer 8$9,328 SGD
Retailer 11$9,973 SGD
Retailer 6$10,342 SGD
Retailer 2$10,808 SGD
Retailer 10$10,902 SGD
Retailer 9$13,789 SGD
NZ Jewellers$16,549 SGD

42 data points across 15 retailers

18 retailers$7,246 SGD to $16,549 SGD

B+
Cheapest Retailer
-
$7,246 SGD
$5,668 USD
B+
Retailer 2
-
$7,817 SGD
$6,115 USD
View
B+
Retailer 3
-
$8,274 SGD
$6,472 USD
View
B+
Retailer 4
-
$8,274 SGD
$6,472 USD
View
Final sale: no returns
B+
Retailer 5
-
$8,343 SGD
$6,526 USD
View
B+
Retailer 6
-
$8,964 SGD
$7,012 USD
View
B
Retailer 7
-
$9,102 SGD
$7,120 USD
View
B
Retailer 8
-
$9,132 SGD
$7,143 USD
View
B+
Retailer 9
-
$9,328 SGD
£5,746 GBP
View
B+
Retailer 10
-
$9,812 SGD
$7,675 USD
View
B+
Retailer 11
-
$9,933 SGD
$7,770 USD
View
B+
Retailer 12
-
$9,933 SGD
$7,770 USD
View
B+
Retailer 13
-
$9,973 SGD
$7,801 USD
View
B
Retailer 14
-
$10,266 SGD
$8,030 USD
View
B
Retailer 15
-
$10,342 SGD
$8,090 USD
View
B
Retailer 16
-
$10,808 SGD
€8,052 EUR
View
B
Retailer 17
-
$13,789 SGD
£8,493 GBP
View
Most Expensive
B
NZ Jewellers
4d673faf-1ed0-41f7-8537-26c63027609b · Oct 30
$16,549 SGD
$12,945 USD
View
17 more retailers have this diamond
Prices start from $7,246 SGDSave up to $9,303 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
$7,246 SGD