Cushion|Natural|GIA

1.70ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 5231935687

Certificate GIA 5231935687

Diamond specifications and retailer prices

From $3,534 USD
As of November 6, 2026
6 retailers carry this diamond
Most expensive: $5,411 USD at MOH London · As of October 21, 2026
View at MOH London

About this 1.7ct natural cushion diamond

This 1.7ct 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 5231935687. Listed at 6 retailers as of November 6, 2026. 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

1.70
Carat
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.33°
OriginNatural
Grading LabGIA
CertificateGIA 5231935687
Dimensions7.77 × 6.12 × 4.27 mm
L/W Ratio1.27
Top View
7.77 mm6.12 mm1.70 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231935687
Side View
Table 62.0%CrownGirdle: MED-VTKPavilion 35.33°Culet: NoneDepth 69.7%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: $5,411 USD|Low: $2,355 USD|High: $5,876 USD|Avg: $3,856 USD|-7.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 23, 2026
Retailer 5$2,355 USD
Retailer 3$2,916 USD
Retailer 6$3,303 USD
Retailer 7$3,534 USD
Retailer 2$3,815 USD
Retailer 8$4,569 USD
Retailer 4$4,872 USD
MOH London$5,411 USD

23 data points across 8 retailers

6 retailers

Retailer 1
-
$2,355 USD
Price last confirmed 14 days ago
Retailer 2
-
$2,916 USD
View
Price last confirmed 8 days ago
Retailer 3
-
$3,303 USD
View
Price last confirmed 15 days ago
B+
Retailer 4
-
$3,534 USD
View
Retailer 5
-
$4,872 USD
View
Price last confirmed 17 days ago
Most Expensive
MOH London
DF45831CF · Oct 21
$5,411 USD
£4,261 GBP
View
Price last confirmed 16 days ago
5 more retailers have this diamond
Prices start from $3,534 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.

B+
1.70ct Cushion
$3,534 USD