Cushion|Natural|GIA

0.90ct I SI1 Cushion Natural Diamond

VG • I/SI1 • GIA 1418316260

Certificate GIA 1418316260

Diamond specifications and retailer prices

From $678 USD
As of October 28, 2026
Save $892 USD (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,570 USD at Moon Ocean · As of October 29, 2026
View at Moon Ocean

About this 0.9ct natural cushion diamond

This 0.9ct natural cushion sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1418316260. Listed at 17 retailers as of October 28, 2026, with prices from $678 to $1,570, a $892 spread on the same certified stone. Moon Ocean lists it at $1,570. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.90
Carat
I
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1418316260
Dimensions5.89 × 5.23 × 3.43 mm
L/W Ratio1.13
Culet sizeNone
Top View
5.89 mm5.23 mm0.90 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1418316260
Side View
Table 67.0%CrownGirdle: MED-MEDPavilionCulet: NoneDepth 65.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $1,570 USD|Low: $630 USD|High: $1,649 USD|Avg: $1,040 USD|-4.6%
Moon Ocean
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
October 29, 2026
Retailer 14$678 USD
Retailer 6$690 USD
Retailer 13$735 USD
Retailer 11$750 USD
Retailer 15$841 USD
Retailer 4$842 USD
Retailer 5$910 USD
Retailer 12$910 USD
Retailer 3$940 USD
Retailer 2$973 USD
Retailer 9$1,145 USD
Retailer 10$1,185 USD
Retailer 7$1,271 USD
Retailer 8$1,494 USD
Moon Ocean$1,570 USD

32 data points across 15 retailers

17 retailers$678 USD to $1,570 USD

A
Cheapest Retailer
-
$678 USD
Final sale: no returns
A
Retailer 2
-
$690 USD
View
A
Retailer 3
-
$735 USD
View
A
Retailer 4
-
$750 USD
View
A
Retailer 5
-
$765 USD
View
Price last confirmed 31 days ago
A
Retailer 6
-
$777 USD
View
Price last confirmed 23 days ago
B+
Retailer 7
-
$841 USD
View
B+
Retailer 8
-
$842 USD
View
B+
Retailer 9
-
$910 USD
View
B+
Retailer 10
-
$910 USD
View
B+
Retailer 11
-
$940 USD
View
A
Retailer 12
-
$973 USD
£766 GBP
View
A
Retailer 13
-
$1,145 USD
€1,090 EUR
View
B+
Retailer 14
-
$1,185 USD
ZAR 19,148 ZAR
View
B+
Retailer 15
-
$1,271 USD
A$1,955 AUD
View
Price last confirmed 25 days ago
B+
Retailer 16
-
$1,494 USD
£1,176 GBP
View
Most Expensive
B+
Moon Ocean
NVN-308686D39-260 · Oct 29
$1,570 USD
£1,236 GBP
View
16 more retailers have this diamond
Prices start from $678 USDSave up to $892 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.

A
0.90ct Cushion
$678 USD