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Cushion|Natural|GIA

1.50ct E SI1 Cushion Natural Diamond

VG • E/SI1 • GIA 6541578989

Certificate GIA 6541578989

Diamond specifications and retailer prices

From $5,155 SGD
HK$31,500 HKD
As of October 29, 2026
Save $5,827 SGD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $10,981 SGD at Wholesale Diamonds Direct · As of October 23, 2026
View at Wholesale Diamonds Direct

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6541578989. Listed at 21 retailers as of October 23, 2026, with prices from $5,155 to $10,981, a $5,827 spread on the same certified stone. Wholesale Diamonds Direct lists it at $10,981. 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

1.50
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle36.9°
OriginNatural
Grading LabGIA
CertificateGIA 6541578989
Dimensions7.14 × 6.20 × 4.21 mm
L/W Ratio1.15
Top View
7.14 mm6.20 mm1.50 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6541578989
Side View
Table 65.0%CrownGirdle: THK-VTKPavilion 36.9°Culet: NDepth 67.9%

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: Oct 29
Current: $5,995 SGD|Low: $5,155 SGD|High: $11,462 SGD|Avg: $6,884 SGD|-3.3%
Retailer 1
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
Retailer 18
Wholesale Diamonds Direct
October 30, 2026
Retailer 3$5,155 SGD
Retailer 15$5,225 SGD
Retailer 4$5,566 SGD
Retailer 18$5,578 SGD
Retailer 12$5,689 SGD
Retailer 5$5,850 SGD
Retailer 2$5,888 SGD
Retailer 1$5,995 SGD
Retailer 7$6,190 SGD
Retailer 6$6,213 SGD
Retailer 17$6,241 SGD
Retailer 13$6,382 SGD
Retailer 11$6,643 SGD
Retailer 10$7,047 SGD
Retailer 9$7,394 SGD
Retailer 14$7,521 SGD
Retailer 16$8,032 SGD
Retailer 8$10,657 SGD
Wholesale Diamonds Direct$10,981 SGD

23 data points across 19 retailers

21 retailers$5,155 SGD to $10,981 SGD

A
Cheapest Retailer
-
$5,155 SGD
HK$31,500 HKD
A
Retailer 2
-
$5,225 SGD
$4,087 USD
View
A
Retailer 3
-
$5,566 SGD
$4,354 USD
View
Final sale: no returns
A
Retailer 4
-
$5,578 SGD
$4,363 USD
View
A
Retailer 5
-
$5,689 SGD
$4,450 USD
View
A
Retailer 6
-
$5,850 SGD
$4,576 USD
View
A
Retailer 7
-
$5,888 SGD
$4,605 USD
View
A
Retailer 8
-
$5,995 SGD
€4,466 EUR
View
A
Retailer 9
-
$6,190 SGD
$4,842 USD
View
A
Retailer 10
-
$6,213 SGD
$4,860 USD
View
A
Retailer 11
-
$6,241 SGD
$4,882 USD
View
A
Retailer 12
-
$6,382 SGD
$4,992 USD
View
Retailer 13
-
$6,382 SGD
$4,992 USD
View
Price last confirmed 9 days ago
A
Retailer 14
-
$6,643 SGD
£4,092 GBP
View
Retailer 15
-
$7,047 SGD
A$8,480 AUD
View
Price last confirmed 20 days ago
B+
Retailer 16
-
$7,236 SGD
A$8,708 AUD
View
A
Retailer 17
-
$7,394 SGD
View
A
Retailer 18
-
$7,521 SGD
€5,603 EUR
View
Retailer 19
-
$8,032 SGD
ZAR 101,506 ZAR
View
Price last confirmed 8 days ago
B+
Retailer 20
-
$10,657 SGD
£6,564 GBP
View
Most Expensive
B+
Wholesale Diamonds Direct
425790474 · Oct 23
$10,981 SGD
$8,590 USD
View
20 more retailers have this diamond
Prices start from $5,155 SGDSave up to $5,827 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
1.50ct Cushion
$5,155 SGD