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Cushion|Natural|GIA

1.51ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 1553193608

Certificate GIA 1553193608

Diamond specifications and retailer prices

From $3,763 USD
HK$29,400 HKD
Save $4,418 USD (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,181 USD at MOH London
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded J 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 1553193608. Listed at 16 retailers, with prices from $3,763 to $8,181 at MOH London, a $4,418 spread on the same certified stone. 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

1.51
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1553193608
Dimensions7.64 × 5.85 × 4.01 mm
L/W Ratio1.31
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Pinpoint
Top View
7.64 mm5.85 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1553193608
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.6%

Caratlytics Score

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

Price History

Last verified: Sep 28
Current: $8,181 USD|Low: $3,763 USD|High: $8,181 USD|Avg: $4,789 USD|+1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 1, 2026
Retailer 10$3,763 USD
Retailer 2$4,096 USD
Retailer 4$4,436 USD
Retailer 9$4,627 USD
Retailer 11$4,630 USD
Retailer 12$4,874 USD
Retailer 8$5,038 USD
Retailer 3$5,120 USD
Retailer 6$5,122 USD
Retailer 5$5,668 USD
Retailer 7$6,120 USD
MOH London$8,181 USD

42 data points across 12 retailers

16 retailers$3,763 USD to $8,181 USD

B+
Cheapest Retailer
-
$3,763 USD
HK$29,400 HKD
B+
Retailer 2
-
$4,096 USD
₹390,060 INR
View
B+
Retailer 3
-
$4,294 USD
View
B+
Retailer 4
-
$4,423 USD
SGD 5,977 SGD
View
B
Retailer 5
-
$4,436 USD
View
Price last confirmed 32 days ago
B
Retailer 6
-
$4,627 USD
View
B
Retailer 7
-
$4,630 USD
View
B
Retailer 8
-
$4,837 USD
SGD 6,536 SGD
View
B
Retailer 9
-
$4,874 USD
A$7,498 AUD
View
B
Retailer 10
-
$5,049 USD
£3,976 GBP
View
B
Retailer 11
-
$5,120 USD
View
B
Retailer 12
-
$5,122 USD
A$7,879 AUD
View
B
Retailer 13
-
$5,227 USD
View
B
Retailer 14
-
$5,668 USD
€5,398 EUR
View
B
Retailer 15
-
$6,120 USD
ZAR 98,865 ZAR
View
Most Expensive
B
MOH London
B006FDC92 · Oct 1
$8,181 USD
£6,442 GBP
View
15 more retailers have this diamond
Prices start from $3,763 USDSave up to $4,418 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.

B+
1.51ct Cushion
$3,763 USD