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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 $6,464 USD
HK$50,500 HKD
As of November 1, 2026
Save $6,319 USD (49%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $12,783 USD 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 $6,464 to $12,783, a $6,319 spread on the same certified stone. Queensmith lists it at $12,783. 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
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: $12,783 USD|Low: $6,464 USD|High: $12,903 USD|Avg: $8,836 USD|+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$6,464 USD
Retailer 9$6,822 USD
Retailer 5$7,031 USD
Retailer 7$7,766 USD
Retailer 12$7,770 USD
Retailer 3$7,890 USD
Retailer 14$7,925 USD
Retailer 8$7,999 USD
Retailer 4$8,065 USD
Retailer 6$8,273 USD
Retailer 10$8,771 USD
Retailer 2$9,380 USD
Retailer 13$10,548 USD
Retailer 11$11,966 USD
Queensmith$12,783 USD

26 data points across 15 retailers

18 retailers$6,464 USD to $12,783 USD

B+
Cheapest Retailer
-
$6,464 USD
HK$50,500 HKD
B+
Retailer 2
-
$6,822 USD
₹649,726 INR
View
B+
Retailer 3
-
$7,031 USD
View
Retailer 4
-
$7,276 USD
SGD 9,833 SGD
View
Price last confirmed 22 days ago
B+
Retailer 5
-
$7,766 USD
SGD 10,494 SGD
View
B+
Retailer 6
-
$7,770 USD
View
B+
Retailer 7
-
$7,890 USD
View
B
Retailer 8
-
$7,925 USD
View
Final sale: no returns
B+
Retailer 9
-
$7,999 USD
£6,298 GBP
View
B
Retailer 10
-
$8,002 USD
View
B
Retailer 11
-
$8,065 USD
View
Retailer 12
-
$8,273 USD
A$12,728 AUD
View
Price last confirmed 11 days ago
B
Retailer 13
-
$8,735 USD
A$13,438 AUD
View
B
Retailer 14
-
$8,771 USD
View
B
Retailer 15
-
$9,380 USD
€8,933 EUR
View
B
Retailer 16
-
$10,548 USD
ZAR 170,401 ZAR
View
B
Retailer 17
-
$11,966 USD
£9,422 GBP
View
Most Expensive
B
Queensmith
6555251052 · Oct 28
$12,783 USD
£10,065 GBP
View
17 more retailers have this diamond
Prices start from $6,464 USDSave up to $6,319 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
$6,464 USD