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Round|Natural|GIA

1.51ct I SI1 Round Natural Diamond

VG • I/SI1 • GIA 6531260924

Certificate GIA 6531260924

Diamond specifications and retailer prices

From $4,255 SGD
HK$26,000 HKD
As of November 1, 2026
Save $5,772 SGD (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,026 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 6531260924. Listed at 19 retailers as of October 30, 2026, with prices from $4,255 to $10,026, a $5,772 spread on the same certified stone. NZ Jewellers lists it at $10,026. 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
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceVery Strong
Crown angle37°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 6531260924
Dimensions7.20 × 7.11 × 4.54 mm
L/W Ratio1.01
Top View
7.20 mm7.11 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceVery Strong
CertificateGIA 6531260924
Side View
Table 58.0%Crown 37°Girdle: STK-THKPavilion 40°Culet: NoneDepth 63.5%

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: $10,026 SGD|Low: $4,205 SGD|High: $10,026 SGD|Avg: $6,238 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 9$4,255 SGD
Retailer 11$4,919 SGD
Retailer 13$5,133 SGD
Retailer 15$5,310 SGD
Retailer 14$5,312 SGD
Retailer 2$5,502 SGD
Retailer 4$5,755 SGD
Retailer 5$5,755 SGD
Retailer 3$5,802 SGD
Retailer 7$5,808 SGD
Retailer 12$6,454 SGD
Retailer 8$6,485 SGD
Retailer 6$6,640 SGD
Retailer 10$9,215 SGD
NZ Jewellers$10,026 SGD

43 data points across 15 retailers

19 retailers$4,255 SGD to $10,026 SGD

A
Cheapest Retailer
-
$4,255 SGD
HK$26,000 HKD
B+
Retailer 2
-
$4,919 SGD
$3,848 USD
View
B+
Retailer 3
-
$4,979 SGD
$3,895 USD
View
B+
Retailer 4
-
$5,019 SGD
$3,926 USD
View
B+
Retailer 5
-
$5,133 SGD
$4,015 USD
View
B+
Retailer 6
-
$5,310 SGD
$4,154 USD
View
Final sale: no returns
A
Retailer 7
-
$5,312 SGD
View
Retailer 8
-
$5,355 SGD
View
Price last confirmed 7 days ago
A
Retailer 9
-
$5,502 SGD
£3,389 GBP
View
B+
Retailer 10
-
$5,755 SGD
$4,502 USD
View
B+
Retailer 11
-
$5,755 SGD
$4,502 USD
View
Retailer 12
-
$5,802 SGD
A$6,982 AUD
View
Price last confirmed 23 days ago
B+
Retailer 13
-
$5,808 SGD
$4,543 USD
View
B+
Retailer 14
-
$6,454 SGD
£3,975 GBP
View
B+
Retailer 15
-
$6,485 SGD
€4,831 EUR
View
B+
Retailer 16
-
$6,640 SGD
$5,194 USD
View
B
Retailer 17
-
$8,179 SGD
$6,398 USD
View
B
Retailer 18
-
$9,215 SGD
£5,676 GBP
View
Most Expensive
B
NZ Jewellers
1cc335ea-eb93-44d1-91b3-413f7d96281e · Oct 30
$10,026 SGD
$7,843 USD
View
18 more retailers have this diamond
Prices start from $4,255 SGDSave up to $5,772 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
$4,255 SGD