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Cushion|Natural|GIA

1.50ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6551192167

Certificate GIA 6551192167

Diamond specifications and retailer prices

From $11,038 NZD
HK$48,600 HKD
As of October 30, 2026
Save $9,707 NZD (47%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $20,744 NZD 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 $11,038 to $20,744, a $9,707 spread on the same certified stone. MOH London lists it at $20,744. 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
Colour
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: $20,744 NZD|Low: $11,038 NZD|High: $20,990 NZD|Avg: $15,007 NZD|-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$11,038 NZD
Retailer 10$11,848 NZD
Retailer 14$12,046 NZD
Retailer 7$13,097 NZD
Retailer 2$13,449 NZD
Retailer 5$13,449 NZD
Retailer 4$13,666 NZD
Retailer 9$13,667 NZD
Retailer 8$13,975 NZD
Retailer 15$14,198 NZD
Retailer 6$15,122 NZD
Retailer 11$16,152 NZD
Retailer 13$18,027 NZD
Retailer 12$20,528 NZD
MOH London$20,744 NZD

29 data points across 15 retailers

18 retailers$11,038 NZD to $20,744 NZD

A
Cheapest Retailer
-
$11,038 NZD
HK$48,600 HKD
A
Retailer 2
-
$11,848 NZD
₹635,933 INR
View
B+
Retailer 3
-
$12,046 NZD
$6,789 USD
View
Retailer 4
-
$12,763 NZD
SGD 9,721 SGD
View
Price last confirmed 22 days ago
B+
Retailer 5
-
$13,097 NZD
SGD 9,975 SGD
View
B+
Retailer 6
-
$13,449 NZD
$7,580 USD
View
B+
Retailer 7
-
$13,449 NZD
$7,580 USD
View
B+
Retailer 8
-
$13,497 NZD
$7,607 USD
View
B+
Retailer 9
-
$13,666 NZD
$7,702 USD
View
Final sale: no returns
B+
Retailer 10
-
$13,667 NZD
$7,703 USD
View
B+
Retailer 11
-
$13,975 NZD
£6,202 GBP
View
Retailer 12
-
$14,198 NZD
A$12,311 AUD
View
Price last confirmed 11 days ago
B+
Retailer 13
-
$15,025 NZD
A$13,028 AUD
View
B+
Retailer 14
-
$15,122 NZD
$8,523 USD
View
B+
Retailer 15
-
$16,152 NZD
€8,670 EUR
View
B
Retailer 16
-
$18,027 NZD
ZAR 164,139 ZAR
View
B
Retailer 17
-
$20,528 NZD
£9,110 GBP
View
Most Expensive
B
MOH London
8691550C1 · Oct 29
$20,744 NZD
£9,206 GBP
View
17 more retailers have this diamond
Prices start from $11,038 NZDSave up to $9,707 NZD

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
$11,038 NZD