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Cushion|Natural|GIA

1.70ct H SI1 Cushion Natural Diamond

ID • H/SI1 • GIA 6555251052

Certificate GIA 6555251052

Diamond specifications and retailer prices

From $8,264 SGD
HK$50,500 HKD
As of November 1, 2026
Save $8,078 SGD (49%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $16,341 SGD at Queensmith · As of October 28, 2026
View at Queensmith

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 6555251052. Listed at 18 retailers as of October 28, 2026, with prices from $8,264 to $16,341, a $8,078 spread on the same certified stone. Queensmith lists it at $16,341. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6555251052
Dimensions8.03 × 6.14 × 4.18 mm
L/W Ratio1.31
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle
Top View
8.03 mm6.14 mm1.70 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6555251052
Side View
Table 66.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.0%

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 1
Current: $16,341 SGD|Low: $8,264 SGD|High: $16,495 SGD|Avg: $11,296 SGD|+1.2%
Queensmith
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
November 2, 2026
Retailer 15$8,264 SGD
Retailer 9$8,721 SGD
Retailer 5$8,988 SGD
Retailer 7$9,927 SGD
Retailer 12$9,933 SGD
Retailer 3$10,087 SGD
Retailer 14$10,131 SGD
Retailer 8$10,226 SGD
Retailer 4$10,310 SGD
Retailer 6$10,577 SGD
Retailer 10$11,213 SGD
Retailer 2$11,991 SGD
Retailer 13$13,484 SGD
Retailer 11$15,297 SGD
Queensmith$16,341 SGD

26 data points across 15 retailers

18 retailers$8,264 SGD to $16,341 SGD

B+
Cheapest Retailer
-
$8,264 SGD
HK$50,500 HKD
B+
Retailer 2
-
$8,721 SGD
₹649,726 INR
View
B+
Retailer 3
-
$8,988 SGD
$7,031 USD
View
Retailer 4
-
$9,302 SGD
View
Price last confirmed 22 days ago
B+
Retailer 5
-
$9,927 SGD
View
B+
Retailer 6
-
$9,933 SGD
$7,770 USD
View
B+
Retailer 7
-
$10,087 SGD
$7,890 USD
View
B
Retailer 8
-
$10,131 SGD
$7,925 USD
View
Final sale: no returns
B+
Retailer 9
-
$10,226 SGD
£6,298 GBP
View
B
Retailer 10
-
$10,230 SGD
$8,002 USD
View
B
Retailer 11
-
$10,310 SGD
$8,065 USD
View
Retailer 12
-
$10,577 SGD
A$12,728 AUD
View
Price last confirmed 11 days ago
B
Retailer 13
-
$11,166 SGD
A$13,438 AUD
View
B
Retailer 14
-
$11,213 SGD
$8,771 USD
View
B
Retailer 15
-
$11,991 SGD
€8,933 EUR
View
B
Retailer 16
-
$13,484 SGD
ZAR 170,401 ZAR
View
B
Retailer 17
-
$15,297 SGD
£9,422 GBP
View
Most Expensive
B
Queensmith
6555251052 · Oct 28
$16,341 SGD
£10,065 GBP
View
17 more retailers have this diamond
Prices start from $8,264 SGDSave up to $8,078 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
$8,264 SGD