Cushion|Natural|GIA

1.70ct H SI1 Cushion Natural Diamond

ID • H/SI1 • GIA 1358142620

Certificate GIA 1358142620

Diamond specifications and retailer prices

From $8,173 USD
As of October 31, 2026
Save $6,323 USD (44%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $14,496 USD at MOH London · As of November 1, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1358142620. Listed at 20 retailers as of October 31, 2026, with prices from $8,173 to $14,496, a $6,323 spread on the same certified stone. MOH London lists it at $14,496. 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
H
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1358142620
Dimensions7.58 × 6.67 × 4.27 mm
L/W Ratio1.14
Culet sizeNone
Top View
7.58 mm6.67 mm1.70 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 1358142620
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $14,496 USD|Low: $7,735 USD|High: $14,671 USD|Avg: $10,764 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 8$8,173 USD
Retailer 6$9,282 USD
Retailer 7$9,282 USD
Retailer 2$10,157 USD
Retailer 5$10,207 USD
Retailer 4$11,106 USD
Retailer 3$13,636 USD
MOH London$14,496 USD

44 data points across 8 retailers

20 retailers$8,173 USD to $14,496 USD

B+
Cheapest Retailer
-
$8,173 USD
B
Retailer 2
-
$8,583 USD
View
B
Retailer 3
-
$8,690 USD
View
B
Retailer 4
-
$8,964 USD
View
B
Retailer 5
-
$8,998 USD
CA$12,498 CAD
View
B
Retailer 6
-
$9,200 USD
View
B
Retailer 7
-
$9,282 USD
View
B
Retailer 8
-
$9,282 USD
View
Final sale: no returns
B
Retailer 9
-
$10,157 USD
£7,998 GBP
View
Retailer 10
-
$10,207 USD
A$15,703 AUD
View
Price last confirmed 9 days ago
B
Retailer 11
-
$10,284 USD
View
B
Retailer 12
-
$10,327 USD
View
B
Retailer 13
-
$10,698 USD
View
B
Retailer 14
-
$10,920 USD
View
B
Retailer 15
-
$10,920 USD
View
B
Retailer 16
-
$11,106 USD
€10,577 EUR
View
B
Retailer 17
-
$11,290 USD
View
Retailer 18
-
$12,214 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
$13,636 USD
ZAR 220,288 ZAR
View
Most Expensive
B
MOH London
86971E802 · Nov 1
$14,496 USD
£11,414 GBP
View
19 more retailers have this diamond
Prices start from $8,173 USDSave up to $6,323 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
$8,173 USD