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1.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1569422103

Certificate GIA 1569422103

Diamond specifications and retailer prices

From $6,993 USD
As of October 31, 2026
Save $6,425 USD (48%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $13,418 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.55ct natural round diamond

This 1.55ct natural round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1569422103. Listed at 10 retailers as of October 29, 2026, with prices from $6,993 to $13,418, a $6,425 spread on the same certified stone. MOH London lists it at $13,418. 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
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1569422103
Dimensions7.38 × 7.34 × 4.60 mm
L/W Ratio1.01
Star length55%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
7.38 mm7.34 mm1.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1569422103
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

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: $13,418 USD|Low: $6,993 USD|High: $13,418 USD|Avg: $9,404 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7$6,993 USD
Retailer 8$7,710 USD
Retailer 2$8,008 USD
Retailer 3$8,805 USD
Retailer 5$8,884 USD
Retailer 9$9,577 USD
Retailer 4$9,906 USD
Retailer 6$10,544 USD
MOH London$13,418 USD

6 data points across 9 retailers

10 retailers$6,993 USD to $13,418 USD

B+
Cheapest Retailer
-
$6,993 USD
B+
Retailer 2
-
$7,478 USD
A$11,505 AUD
View
B
Retailer 3
-
$7,710 USD
View
B+
Retailer 4
-
$8,008 USD
View
Final sale: no returns
B+
Retailer 5
-
$8,805 USD
£6,933 GBP
View
B
Retailer 6
-
$8,884 USD
View
B
Retailer 7
-
$9,490 USD
View
B
Retailer 8
-
$9,577 USD
View
B
Retailer 9
-
$9,906 USD
€9,434 EUR
View
Most Expensive
B
MOH London
4F014021D · Oct 29
$13,418 USD
£10,565 GBP
View
9 more retailers have this diamond
Prices start from $6,993 USDSave up to $6,425 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+
1.55ct Round
$6,993 USD