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Round|Natural|GIA

1.51ct D I1 Round Natural Diamond

EX • D/I1 • GIA 6515182503

Certificate GIA 6515182503

Diamond specifications and retailer prices

From $4,533 SGD
HK$27,700 HKD
As of November 1, 2026
Save $5,574 SGD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $10,107 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 D colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6515182503. Listed at 11 retailers as of October 30, 2026, with prices from $4,533 to $10,107, a $5,574 spread on the same certified stone. NZ Jewellers lists it at $10,107. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6515182503
Dimensions7.29 × 7.33 × 4.50 mm
L/W Ratio1.01
Star length55%
Lower girdle75%
Top View
7.29 mm7.33 mm1.51 ctD / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6515182503
Side View
Table 59.0%Crown 35.5°Girdle: STK-STKPavilion 40.6°Culet: NoneDepth 61.6%

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: $10,107 SGD|Low: $4,484 SGD|High: $10,636 SGD|Avg: $6,753 SGD|-5.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 6$4,533 SGD
Retailer 2$4,619 SGD
Retailer 5$5,060 SGD
Retailer 4$5,801 SGD
Retailer 7$6,059 SGD
Retailer 9$6,104 SGD
Retailer 3$6,538 SGD
Retailer 8$6,694 SGD
Retailer 10$9,275 SGD
NZ Jewellers$10,107 SGD

45 data points across 10 retailers

11 retailers$4,533 SGD to $10,107 SGD

A
Cheapest Retailer
-
$4,533 SGD
HK$27,700 HKD
A
Retailer 2
-
$4,619 SGD
₹344,140 INR
View
A
Retailer 3
-
$5,060 SGD
$3,958 USD
View
A
Retailer 4
-
$5,801 SGD
$4,538 USD
View
A
Retailer 5
-
$6,059 SGD
$4,740 USD
View
A
Retailer 6
-
$6,104 SGD
$4,775 USD
View
A
Retailer 7
-
$6,104 SGD
$4,775 USD
View
A
Retailer 8
-
$6,538 SGD
€4,871 EUR
View
B+
Retailer 9
-
$6,694 SGD
$5,236 USD
View
B
Retailer 10
-
$9,275 SGD
$7,255 USD
View
Most Expensive
B
NZ Jewellers
6860eb66-dc8a-4cd3-9ed8-2e23e42255fc · Oct 30
$10,107 SGD
$7,906 USD
View
10 more retailers have this diamond
Prices start from $4,533 SGDSave up to $5,574 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
$4,533 SGD