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Round|Natural|GIA

1.51ct J SI1 Round Natural Diamond

VG • J/SI1 • GIA 6541690790

Certificate GIA 6541690790

Diamond specifications and retailer prices

From $4,336 SGD
HK$26,500 HKD
As of November 1, 2026
Save $5,994 SGD (58%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $10,331 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 6541690790. Listed at 21 retailers as of October 30, 2026, with prices from $4,336 to $10,331, a $5,994 spread on the same certified stone. NZ Jewellers lists it at $10,331. 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
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 6541690790
Dimensions7.10 × 7.17 × 4.56 mm
L/W Ratio1.01
Top View
7.10 mm7.17 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6541690790
Side View
Table 59.0%Crown 38°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 63.9%

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: Nov 1
Current: $10,331 SGD|Low: $4,304 SGD|High: $10,331 SGD|Avg: $6,466 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
Retailer 16
Retailer 17
November 2, 2026
Retailer 16$4,336 SGD
Retailer 14$5,010 SGD
Retailer 3$5,474 SGD
Retailer 5$5,474 SGD
Retailer 10$5,556 SGD
Retailer 11$5,855 SGD
Retailer 4$5,930 SGD
Retailer 9$5,930 SGD
Retailer 8$5,942 SGD
Retailer 6$5,978 SGD
Retailer 17$6,624 SGD
Retailer 12$6,682 SGD
Retailer 7$6,842 SGD
Retailer 2$7,083 SGD
Retailer 15$7,289 SGD
Retailer 13$9,444 SGD
NZ Jewellers$10,331 SGD

35 data points across 17 retailers

21 retailers$4,336 SGD to $10,331 SGD

A
Cheapest Retailer
-
$4,336 SGD
HK$26,500 HKD
B+
Retailer 2
-
$5,010 SGD
$3,919 USD
View
B+
Retailer 3
-
$5,171 SGD
$4,045 USD
View
B+
Retailer 4
-
$5,474 SGD
View
B+
Retailer 5
-
$5,474 SGD
$4,282 USD
View
Final sale: no returns
B+
Retailer 6
-
$5,522 SGD
View
B+
Retailer 7
-
$5,556 SGD
£3,422 GBP
View
B+
Retailer 8
-
$5,855 SGD
$4,580 USD
View
B+
Retailer 9
-
$5,930 SGD
$4,639 USD
View
Retailer 10
-
$5,930 SGD
$4,639 USD
View
Price last confirmed 33 days ago
B+
Retailer 11
-
$5,942 SGD
$4,648 USD
View
Retailer 12
-
$5,978 SGD
A$7,194 AUD
View
Price last confirmed 23 days ago
B
Retailer 13
-
$6,251 SGD
$4,890 USD
View
B
Retailer 14
-
$6,624 SGD
£4,080 GBP
View
B
Retailer 15
-
$6,682 SGD
€4,978 EUR
View
B
Retailer 16
-
$6,842 SGD
$5,352 USD
View
B
Retailer 17
-
$7,083 SGD
£4,362 GBP
View
B
Retailer 18
-
$7,289 SGD
ZAR 92,112 ZAR
View
B
Retailer 19
-
$8,427 SGD
$6,592 USD
View
B
Retailer 20
-
$9,444 SGD
£5,817 GBP
View
Most Expensive
C
NZ Jewellers
7976b29a-0d7a-47bb-ae9c-a3187b2253b9 · Oct 30
$10,331 SGD
$8,081 USD
View
20 more retailers have this diamond
Prices start from $4,336 SGDSave up to $5,994 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 Round
$4,336 SGD