Cushion|Natural|GIA

1.30ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 3555596821

Certificate GIA 3555596821

Diamond specifications and retailer prices

From $3,832 USD
SGD 5,178 SGD
As of October 31, 2026
Save $600 USD (14%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,303 USD at Queensmith · As of October 11, 2026
View at Queensmith

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded G 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 3555596821. Listed at 12 retailers as of October 31, 2026, with a relatively tight 16% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.30
Carat
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555596821
Dimensions7.51 × 5.51 × 3.76 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Indented Natural, Needle, Natural
Top View
7.51 mm5.51 mm1.30 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555596821
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.3%

Caratlytics Score

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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: Oct 31
Current: $7,303 USD|Low: $3,277 USD|High: $7,423 USD|Avg: $4,629 USD|-1.6%
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
Retailer 16
October 13, 2026
Retailer 3$3,277 USD
Retailer 12$3,521 USD
Retailer 8$3,701 USD
Retailer 15$3,768 USD
Retailer 2$3,832 USD
Retailer 5$3,984 USD
Retailer 4$3,985 USD
Retailer 6$4,165 USD
Retailer 14$4,374 USD
Retailer 9$4,455 USD
Retailer 7$4,523 USD
Retailer 11$4,665 USD
Retailer 10$4,931 USD
Retailer 16$5,274 USD
Retailer 13$7,032 USD
Queensmith$7,303 USD

25 data points across 16 retailers

12 retailers$3,832 USD to $4,432 USD

Retailer 1
-
$3,277 USD
HK$25,600 HKD
Price last confirmed 21 days ago
Retailer 2
-
$3,768 USD
View
Price last confirmed 25 days ago
A
Retailer 3
-
$3,832 USD
SGD 5,178 SGD
View
B+
Retailer 4
-
$3,984 USD
View
Retailer 5
-
$4,165 USD
SGD 5,628 SGD
View
Price last confirmed 23 days ago
Retailer 6
-
$4,374 USD
View
Price last confirmed 25 days ago
B+
Retailer 7
-
$4,432 USD
A$6,818 AUD
View
Retailer 8
-
$4,523 USD
View
Price last confirmed 24 days ago
Retailer 9
-
$4,665 USD
A$7,178 AUD
View
Price last confirmed 23 days ago
Retailer 10
-
$5,274 USD
ZAR 85,203 ZAR
View
Price last confirmed 32 days ago
Retailer 11
-
$7,032 USD
£5,537 GBP
View
Price last confirmed 25 days ago
Most Expensive
Queensmith
3555596821 · Oct 11
$7,303 USD
£5,750 GBP
View
Price last confirmed 21 days ago
11 more retailers have this diamond
Prices start from $3,832 USDSave up to $600 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
1.30ct Cushion
$3,832 USD