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Cushion|Natural|GIA

1.50ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 1553672759

Certificate GIA 1553672759

Diamond specifications and retailer prices

From $5,197 USD
HK$40,600 HKD
As of October 31, 2026
Save $5,211 USD (50%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,408 USD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553672759. Listed at 19 retailers as of October 28, 2026, with prices from $5,197 to $10,408, a $5,211 spread on the same certified stone. Queensmith lists it at $10,408. 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
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1553672759
Dimensions7.87 × 5.92 × 4.06 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Knot, Needle, Extra Facet
Top View
7.87 mm5.92 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1553672759
Side View
Table 65.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 68.6%

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: Oct 31
Current: $10,408 USD|Low: $5,158 USD|High: $10,490 USD|Avg: $7,218 USD|+1.7%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 7$5,197 USD
Retailer 6$5,544 USD
Retailer 12$5,796 USD
Retailer 5$6,125 USD
Retailer 13$6,397 USD
Retailer 10$6,504 USD
Retailer 9$6,647 USD
Retailer 3$6,790 USD
Retailer 4$7,091 USD
Retailer 8$7,574 USD
Retailer 2$8,516 USD
Retailer 11$10,265 USD
Queensmith$10,408 USD

23 data points across 13 retailers

19 retailers$5,197 USD to $10,408 USD

A
Cheapest Retailer
-
$5,197 USD
HK$40,600 HKD
A
Retailer 2
-
$5,544 USD
₹528,005 INR
View
A
Retailer 3
-
$5,796 USD
View
Retailer 4
-
$5,970 USD
SGD 8,067 SGD
View
Price last confirmed 17 days ago
A
Retailer 5
-
$6,125 USD
SGD 8,277 SGD
View
B+
Retailer 6
-
$6,368 USD
View
B+
Retailer 7
-
$6,370 USD
View
B+
Retailer 8
-
$6,397 USD
View
Final sale: no returns
Retailer 9
-
$6,439 USD
View
Price last confirmed 15 days ago
B+
Retailer 10
-
$6,504 USD
£5,122 GBP
View
B+
Retailer 11
-
$6,647 USD
£5,234 GBP
View
B+
Retailer 12
-
$6,790 USD
View
Retailer 13
-
$6,840 USD
A$10,524 AUD
View
Price last confirmed 27 days ago
B+
Retailer 14
-
$7,091 USD
View
B+
Retailer 15
-
$7,285 USD
A$11,208 AUD
View
B+
Retailer 16
-
$7,574 USD
€7,213 EUR
View
B+
Retailer 17
-
$8,516 USD
ZAR 137,573 ZAR
View
B
Retailer 18
-
$10,265 USD
£8,083 GBP
View
Most Expensive
B
Queensmith
1553672759 · Oct 28
$10,408 USD
£8,195 GBP
View
18 more retailers have this diamond
Prices start from $5,197 USDSave up to $5,211 USD

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
$5,197 USD