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Cushion|Natural|GIA

1.70ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 5556438420

Certificate GIA 5556438420

Diamond specifications and retailer prices

From $8,379 USD
SGD 11,323 SGD
As of October 31, 2026
Save $6,819 USD (45%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $15,198 USD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

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 5556438420. Listed at 20 retailers as of October 31, 2026, with prices from $8,379 to $15,198, a $6,819 spread on the same certified stone. 77 Diamonds lists it at $15,198. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5556438420
Dimensions8.31 × 6.20 × 4.12 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Indented Natural, Cloud
Top View
8.31 mm6.20 mm1.70 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5556438420
Side View
Table 68.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 66.5%

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: Oct 31
Current: $15,198 USD|Low: $7,040 USD|High: $15,198 USD|Avg: $9,521 USD|+69.3%
77 Diamonds
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 19$7,040 USD
Retailer 16$7,463 USD
Retailer 10$7,643 USD
Retailer 9$8,379 USD
Retailer 18$8,635 USD
Retailer 4$8,690 USD
Retailer 11$8,760 USD
Retailer 15$8,870 USD
Retailer 17$8,889 USD
Retailer 6$9,625 USD
Retailer 3$9,716 USD
Retailer 5$10,212 USD
Retailer 8$11,520 USD
Retailer 2$11,569 USD
Retailer 12$12,251 USD
Retailer 13$12,332 USD
Retailer 7$13,193 USD
Retailer 14$13,278 USD
77 Diamonds$15,198 USD

23 data points across 19 retailers

20 retailers$8,379 USD to $15,198 USD

Retailer 1
-
$7,040 USD
HK$55,000 HKD
Price last confirmed 13 days ago
Retailer 2
-
$7,463 USD
₹710,735 INR
View
Price last confirmed 12 days ago
Retailer 3
-
$7,643 USD
View
Price last confirmed 18 days ago
Retailer 4
-
$7,848 USD
SGD 10,606 SGD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
$8,379 USD
SGD 11,323 SGD
View
Retailer 6
-
$8,635 USD
View
Price last confirmed 11 days ago
B
Retailer 7
-
$8,635 USD
View
Retailer 8
-
$8,760 USD
View
Price last confirmed 17 days ago
Retailer 9
-
$8,870 USD
A$13,646 AUD
View
Price last confirmed 11 days ago
B
Retailer 10
-
$9,547 USD
A$14,688 AUD
View
Retailer 11
-
$9,625 USD
View
Price last confirmed 14 days ago
Retailer 12
-
$9,716 USD
View
Price last confirmed 13 days ago
Retailer 13
-
$11,520 USD
ZAR 186,099 ZAR
View
Price last confirmed 16 days ago
B
Retailer 14
-
$11,569 USD
View
B
Retailer 15
-
$12,251 USD
View
B
Retailer 16
-
$12,332 USD
View
B
Retailer 17
-
$12,421 USD
A$19,109 AUD
View
Retailer 18
-
$13,193 USD
£10,388 GBP
View
Price last confirmed 12 days ago
Retailer 19
-
$13,278 USD
£10,455 GBP
View
Price last confirmed 11 days ago
Most Expensive
C
77 Diamonds
CUSZAFRFZ72N · Nov 2
$15,198 USD
£11,967 GBP
View
19 more retailers have this diamond
Prices start from $8,379 USDSave up to $6,819 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
$8,379 USD