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Cushion|Natural|GIA

1.71ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 6542681898

Certificate GIA 6542681898

Diamond specifications and retailer prices

From $5,625 AUD
As of November 6, 2026
Save $6,092 AUD (52%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $11,717 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.71ct natural cushion diamond

This 1.71ct natural cushion sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542681898. Listed at 16 retailers as of November 4, 2026, with prices from $5,625 to $11,717, a $6,092 spread on the same certified stone. MOH London lists it at $11,717. 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

1.71
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6542681898
Dimensions7.91 × 6.21 × 4.33 mm
L/W Ratio1.27
Top View
7.91 mm6.21 mm1.71 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6542681898
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.8%

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: $11,717 AUD|Low: $5,625 AUD|High: $11,890 AUD|Avg: $7,568 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$5,625 AUD
Retailer 4$5,896 AUD
Retailer 9$6,316 AUD
Retailer 6$6,683 AUD
Retailer 7$7,059 AUD
Retailer 2$7,262 AUD
Retailer 5$8,310 AUD
Retailer 3$8,999 AUD
MOH London$11,717 AUD

44 data points across 9 retailers

16 retailers$5,625 AUD to $11,717 AUD

B+
Cheapest Retailer
-
$5,625 AUD
B+
Retailer 2
-
$5,763 AUD
View
B+
Retailer 3
-
$5,827 AUD
View
B+
Retailer 4
-
$5,896 AUD
View
B+
Retailer 5
-
$6,316 AUD
View
Retailer 6
-
$6,683 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$6,794 AUD
View
B
Retailer 8
-
$7,031 AUD
View
B
Retailer 9
-
$7,037 AUD
View
B
Retailer 10
-
$7,059 AUD
View
B+
Retailer 11
-
$7,262 AUD
View
Retailer 12
-
$8,142 AUD
View
Price last confirmed 15 days ago
B
Retailer 13
-
$8,310 AUD
View
B
Retailer 14
-
$8,999 AUD
View
B
Retailer 15
-
$10,675 AUD
View
Most Expensive
B
MOH London
9937217E9 · Nov 4
$11,717 AUD
£6,339 GBP
View
15 more retailers have this diamond
Prices start from $5,625 AUDSave up to $6,092 AUD

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+
1.71ct Cushion
$5,625 AUD