Cushion|Natural|GIA

1.55ct I SI1 Cushion Natural Diamond

ID • I/SI1 • GIA 5242011749

Certificate GIA 5242011749

Diamond specifications and retailer prices

From $3,008 USD
HK$23,500 HKD
As of November 1, 2026
Save $3,799 USD (56%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,807 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.55ct natural cushion diamond

This 1.55ct natural cushion sits in the one-and-a-half to two carat band, graded I 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 5242011749. Listed at 17 retailers as of November 1, 2026, with prices from $3,008 to $6,807, a $3,799 spread on the same certified stone. MOH London lists it at $6,807. 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

1.55
Carat
I
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5242011749
Dimensions8.26 × 6.15 × 4.03 mm
L/W Ratio1.34
Girdle conditionFaceted
Top View
8.26 mm6.15 mm1.55 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5242011749
Side View
Table 64.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 65.5%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $6,807 USD|Low: $3,008 USD|High: $7,113 USD|Avg: $4,171 USD|-4.3%
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
November 2, 2026
Retailer 11$3,008 USD
Retailer 3$3,133 USD
Retailer 9$3,227 USD
Retailer 5$3,326 USD
Retailer 14$3,403 USD
Retailer 13$3,467 USD
Retailer 7$3,615 USD
Retailer 12$3,620 USD
Retailer 10$3,680 USD
Retailer 2$3,884 USD
Retailer 4$4,284 USD
Retailer 8$4,518 USD
Retailer 16$4,720 USD
Retailer 15$5,126 USD
Retailer 6$6,445 USD
MOH London$6,807 USD

27 data points across 16 retailers

17 retailers$3,008 USD to $6,807 USD

A
Cheapest Retailer
-
$3,008 USD
HK$23,500 HKD
A
Retailer 2
-
$3,133 USD
View
A
Retailer 3
-
$3,227 USD
View
A
Retailer 4
-
$3,326 USD
View
A
Retailer 5
-
$3,403 USD
View
Final sale: no returns
A
Retailer 6
-
$3,467 USD
€3,302 EUR
View
A
Retailer 7
-
$3,615 USD
View
A
Retailer 8
-
$3,620 USD
View
A
Retailer 9
-
$3,680 USD
View
A
Retailer 10
-
$3,884 USD
£3,059 GBP
View
A
Retailer 11
-
$4,074 USD
A$6,268 AUD
View
A
Retailer 12
-
$4,284 USD
View
Retailer 13
-
$4,518 USD
A$6,951 AUD
View
Price last confirmed 23 days ago
A
Retailer 14
-
$4,720 USD
€4,495 EUR
View
B+
Retailer 15
-
$5,126 USD
ZAR 82,812 ZAR
View
Retailer 16
-
$6,445 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
MOH London
EDA8DE476 · Nov 1
$6,807 USD
£5,360 GBP
View
16 more retailers have this diamond
Prices start from $3,008 USDSave up to $3,799 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
1.55ct Cushion
$3,008 USD