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Cushion|Natural|GIA

1.80ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 7548815425

Certificate GIA 7548815425

Diamond specifications and retailer prices

From $6,604 USD
As of October 31, 2026
Save $5,776 USD (47%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $12,380 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.8ct natural cushion diamond

This 1.8ct natural cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7548815425. Listed at 19 retailers as of October 31, 2026, with prices from $6,604 to $12,380, a $5,776 spread on the same certified stone. MOH London lists it at $12,380. 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

1.80
Carat
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7548815425
Dimensions7.81 × 6.51 × 4.56 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizeNone
Top View
7.81 mm6.51 mm1.80 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7548815425
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 70.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $12,380 USD|Low: $6,464 USD|High: $12,529 USD|Avg: $8,248 USD|-0.1%
MOH London
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
November 1, 2026
Retailer 16$6,604 USD
Retailer 9$6,899 USD
Retailer 15$6,955 USD
Retailer 12$7,110 USD
Retailer 7$7,138 USD
Retailer 10$7,303 USD
Retailer 13$7,429 USD
Retailer 17$7,914 USD
Retailer 18$8,163 USD
Retailer 14$8,189 USD
Retailer 4$8,211 USD
Retailer 2$8,281 USD
Retailer 3$8,730 USD
Retailer 5$8,730 USD
Retailer 6$9,020 USD
Retailer 11$9,707 USD
Retailer 8$9,783 USD
MOH London$12,380 USD

41 data points across 18 retailers

19 retailers$6,604 USD to $12,380 USD

B+
Cheapest Retailer
-
$6,604 USD
B+
Retailer 2
-
$6,899 USD
View
B+
Retailer 3
-
$6,923 USD
A$10,652 AUD
View
B+
Retailer 4
-
$6,955 USD
View
B+
Retailer 5
-
$7,110 USD
View
Final sale: no returns
B+
Retailer 6
-
$7,138 USD
View
Retailer 7
-
$7,303 USD
View
Price last confirmed 18 days ago
B
Retailer 8
-
$7,429 USD
View
B+
Retailer 9
-
$7,914 USD
View
B
Retailer 10
-
$8,163 USD
A$12,558 AUD
View
B
Retailer 11
-
$8,189 USD
View
B
Retailer 12
-
$8,211 USD
CA$11,404 CAD
View
B+
Retailer 13
-
$8,281 USD
£6,521 GBP
View
B
Retailer 14
-
$8,730 USD
View
B
Retailer 15
-
$8,730 USD
View
B
Retailer 16
-
$9,020 USD
View
B
Retailer 17
-
$9,707 USD
€9,245 EUR
View
Retailer 18
-
$9,783 USD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
BEDCD5359 · Nov 1
$12,380 USD
£9,748 GBP
View
18 more retailers have this diamond
Prices start from $6,604 USDSave up to $5,776 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+
1.80ct Cushion
$6,604 USD