Cushion|Natural|GIA

1.50ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6551192167

Certificate GIA 6551192167

Diamond specifications and retailer prices

From $6,221 USD
HK$48,600 HKD
As of October 30, 2026
Save $5,471 USD (47%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $11,692 USD at MOH London · As of October 29, 2026
View at MOH London

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 6551192167. Listed at 18 retailers as of October 29, 2026, with prices from $6,221 to $11,692, a $5,471 spread on the same certified stone. MOH London lists it at $11,692. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551192167
Dimensions7.95 × 5.93 × 3.97 mm
L/W Ratio1.34
Top View
7.95 mm5.93 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551192167
Side View
Table 64.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 66.9%

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 30
Current: $11,692 USD|Low: $6,221 USD|High: $11,830 USD|Avg: $8,458 USD|-0.9%
MOH London
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
October 31, 2026
Retailer 3$6,221 USD
Retailer 10$6,677 USD
Retailer 14$6,789 USD
Retailer 7$7,382 USD
Retailer 2$7,580 USD
Retailer 5$7,580 USD
Retailer 4$7,702 USD
Retailer 9$7,703 USD
Retailer 8$7,876 USD
Retailer 15$8,002 USD
Retailer 6$8,523 USD
Retailer 11$9,104 USD
Retailer 13$10,160 USD
Retailer 12$11,570 USD
MOH London$11,692 USD

29 data points across 15 retailers

18 retailers$6,221 USD to $11,692 USD

A
Cheapest Retailer
-
$6,221 USD
HK$48,600 HKD
A
Retailer 2
-
$6,677 USD
₹635,933 INR
View
B+
Retailer 3
-
$6,789 USD
View
Retailer 4
-
$7,194 USD
SGD 9,721 SGD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
$7,382 USD
SGD 9,975 SGD
View
B+
Retailer 6
-
$7,580 USD
View
B+
Retailer 7
-
$7,580 USD
View
B+
Retailer 8
-
$7,607 USD
View
B+
Retailer 9
-
$7,702 USD
View
Final sale: no returns
B+
Retailer 10
-
$7,703 USD
View
B+
Retailer 11
-
$7,876 USD
£6,202 GBP
View
Retailer 12
-
$8,002 USD
A$12,311 AUD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
$8,468 USD
A$13,028 AUD
View
B+
Retailer 14
-
$8,523 USD
View
B+
Retailer 15
-
$9,104 USD
€8,670 EUR
View
B
Retailer 16
-
$10,160 USD
ZAR 164,139 ZAR
View
B
Retailer 17
-
$11,570 USD
£9,110 GBP
View
Most Expensive
B
MOH London
8691550C1 · Oct 29
$11,692 USD
£9,206 GBP
View
17 more retailers have this diamond
Prices start from $6,221 USDSave up to $5,471 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
$6,221 USD