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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 $10,712 SGD
As of October 31, 2026
Save $8,717 SGD (45%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $19,429 SGD 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 21 retailers as of October 31, 2026, with prices from $10,712 to $19,429, a $8,717 spread on the same certified stone. 77 Diamonds lists it at $19,429. 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
Colour
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: $19,429 SGD|Low: $9,000 SGD|High: $19,429 SGD|Avg: $12,171 SGD|+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$9,000 SGD
Retailer 16$9,540 SGD
Retailer 10$9,771 SGD
Retailer 9$10,712 SGD
Retailer 18$11,039 SGD
Retailer 4$11,109 SGD
Retailer 11$11,199 SGD
Retailer 15$11,339 SGD
Retailer 17$11,364 SGD
Retailer 6$12,305 SGD
Retailer 3$12,421 SGD
Retailer 5$13,055 SGD
Retailer 8$14,727 SGD
Retailer 2$14,790 SGD
Retailer 12$15,662 SGD
Retailer 13$15,765 SGD
Retailer 7$16,866 SGD
Retailer 14$16,974 SGD
77 Diamonds$19,429 SGD

23 data points across 19 retailers

21 retailers$10,712 SGD to $19,429 SGD

Retailer 1
-
$9,000 SGD
HK$55,000 HKD
Price last confirmed 12 days ago
Retailer 2
-
$9,540 SGD
₹710,735 INR
View
Price last confirmed 11 days ago
Retailer 3
-
$9,771 SGD
$7,643 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$10,033 SGD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
$10,712 SGD
View
Retailer 6
-
$11,039 SGD
$8,635 USD
View
Price last confirmed 11 days ago
B
Retailer 7
-
$11,039 SGD
$8,635 USD
View
Retailer 8
-
$11,199 SGD
$8,760 USD
View
Price last confirmed 17 days ago
Retailer 9
-
$11,339 SGD
A$13,646 AUD
View
Price last confirmed 11 days ago
Retailer 10
-
$11,364 SGD
£6,999 GBP
View
Price last confirmed 12 days ago
B
Retailer 11
-
$12,205 SGD
A$14,688 AUD
View
Retailer 12
-
$12,305 SGD
$9,625 USD
View
Price last confirmed 14 days ago
Retailer 13
-
$12,421 SGD
$9,716 USD
View
Price last confirmed 13 days ago
Retailer 14
-
$14,727 SGD
ZAR 186,099 ZAR
View
Price last confirmed 15 days ago
B
Retailer 15
-
$14,790 SGD
$11,569 USD
View
B
Retailer 16
-
$15,662 SGD
$12,251 USD
View
B
Retailer 17
-
$15,765 SGD
$12,332 USD
View
B
Retailer 18
-
$15,878 SGD
A$19,109 AUD
View
Retailer 19
-
$16,866 SGD
£10,388 GBP
View
Price last confirmed 12 days ago
Retailer 20
-
$16,974 SGD
£10,455 GBP
View
Price last confirmed 11 days ago
Most Expensive
C
77 Diamonds
CUSZAFRFZ72N · Nov 2
$19,429 SGD
£11,967 GBP
View
20 more retailers have this diamond
Prices start from $10,712 SGDSave up to $8,717 SGD

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
$10,712 SGD