Round|Natural|GIA

1.31ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1555526554

Certificate GIA 1555526554

Diamond specifications and retailer prices

From $3,695 USD
As of October 30, 2026
Save $2,832 USD (43%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,527 USD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.31ct natural round diamond

This 1.31ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1555526554. Listed at 14 retailers as of October 26, 2026, with prices from $3,695 to $6,527, a $2,832 spread on the same certified stone. Wholesale Diamonds Direct lists it at $6,527. 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

1.31
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555526554
Dimensions6.94 × 6.98 × 4.34 mm
L/W Ratio1.01
Top View
6.94 mm6.98 mm1.31 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555526554
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.4%

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: Oct 30
Current: $4,796 USD|Low: $2,401 USD|High: $6,527 USD|Avg: $4,255 USD|+18.3%
Retailer 1
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
Wholesale Diamonds Direct
November 1, 2026
Retailer 8$2,401 USD
Retailer 6$3,166 USD
Retailer 9$3,260 USD
Retailer 4$3,539 USD
Retailer 7$3,670 USD
Retailer 16$3,695 USD
Retailer 15$3,990 USD
Retailer 2$4,445 USD
Retailer 10$4,580 USD
Retailer 12$4,730 USD
Retailer 14$4,730 USD
Retailer 1$4,796 USD
Retailer 3$4,839 USD
Retailer 13$4,890 USD
Retailer 17$5,175 USD
Retailer 11$5,698 USD
Retailer 5$5,738 USD
Wholesale Diamonds Direct$6,527 USD

24 data points across 18 retailers

14 retailers$3,695 USD to $6,527 USD

Retailer 1
-
$3,670 USD
A$5,646 AUD
Price last confirmed 36 days ago
A
Retailer 2
-
$3,695 USD
View
B+
Retailer 3
-
$3,990 USD
View
B+
Retailer 4
-
$4,445 USD
View
B+
Retailer 5
-
$4,580 USD
£3,606 GBP
View
B+
Retailer 6
-
$4,730 USD
View
B+
Retailer 7
-
$4,730 USD
View
B+
Retailer 8
-
$4,796 USD
€4,568 EUR
View
B
Retailer 9
-
$4,839 USD
View
B
Retailer 10
-
$4,890 USD
View
B
Retailer 11
-
$5,175 USD
£4,075 GBP
View
B
Retailer 12
-
$5,698 USD
ZAR 92,057 ZAR
View
Retailer 13
-
$5,914 USD
View
Price last confirmed 35 days ago
Most Expensive
B
Wholesale Diamonds Direct
559978621 · Oct 26
$6,527 USD
View
13 more retailers have this diamond
Prices start from $3,695 USDSave up to $2,832 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
1.31ct Round
$3,695 USD