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Round|Natural|GIA

1.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6445559608

Certificate GIA 6445559608

Diamond specifications and retailer prices

From $7,569 SGD
As of November 6, 2026
Save $6,812 SGD (47%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $17,307 SGD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct 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 top-tier cut grade and certified by GIA 6445559608. Listed at 23 retailers as of November 4, 2026, with a 90% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle34°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6445559608
Dimensions7.33 × 7.29 × 4.50 mm
L/W Ratio1.01
Top View
7.33 mm7.29 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6445559608
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.7%

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: Nov 6
Current: $10,585 SGD|Low: $7,510 SGD|High: $14,595 SGD|Avg: $10,297 SGD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$7,715 SGD
Retailer 2$8,177 SGD
Retailer 10$8,652 SGD
Retailer 3$9,542 SGD
Retailer 7$9,914 SGD
Retailer 9$9,922 SGD
Retailer 1$10,585 SGD
Retailer 5$10,610 SGD
Retailer 4$12,624 SGD
Retailer 6$14,381 SGD

37 data points across 10 retailers

23 retailers$7,569 SGD to $14,381 SGD

B+
Cheapest Retailer
-
$7,569 SGD
B+
Retailer 2
-
$7,715 SGD
View
B+
Retailer 3
-
$7,814 SGD
View
B+
Retailer 4
-
$8,177 SGD
View
B+
Retailer 5
-
$8,652 SGD
View
Final sale: no returns
B+
Retailer 6
-
$8,664 SGD
View
B
Retailer 7
-
$9,213 SGD
View
Retailer 8
-
$9,375 SGD
View
Price last confirmed 36 days ago
B
Retailer 9
-
$9,503 SGD
View
Retailer 10
-
$9,518 SGD
View
Price last confirmed 38 days ago
B
Retailer 11
-
$9,542 SGD
View
Retailer 12
-
$9,914 SGD
View
Price last confirmed 15 days ago
B+
Retailer 13
-
$9,922 SGD
View
B
Retailer 14
-
$10,355 SGD
View
B
Retailer 15
-
$10,355 SGD
View
B+
Retailer 16
-
$10,585 SGD
View
B+
Retailer 17
-
$10,610 SGD
View
B
Retailer 18
-
$10,701 SGD
View
Retailer 19
-
$10,817 SGD
View
Price last confirmed 38 days ago
Retailer 20
-
$11,400 SGD
View
Price last confirmed 14 days ago
B
Retailer 21
-
$12,624 SGD
View
B
Retailer 22
-
$14,381 SGD
View
Most Expensive
NZ Jewellers
cc652f64-fa03-4faf-9ca2-97eb75db1b77 · Sep 28
$17,307 SGD
$13,504 USD
View
Price last confirmed 39 days ago
22 more retailers have this diamond
Prices start from $7,569 SGDSave up to $6,812 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+
1.50ct Round
$7,569 SGD