Round|Natural|GIA

1.55ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6531637252

Certificate GIA 6531637252

Diamond specifications and retailer prices

From $6,035 USD
As of October 30, 2026
Save $4,702 USD (44%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $10,737 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6531637252. Listed at 9 retailers as of October 29, 2026, with prices from $6,035 to $10,737, a $4,702 spread on the same certified stone. MOH London lists it at $10,737. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6531637252
Dimensions7.37 × 7.43 × 4.62 mm
L/W Ratio1.01
Top View
7.37 mm7.43 mm1.55 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531637252
Side View
Table 56.0%Crown 35.5°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 30
Current: $10,737 USD|Low: $6,035 USD|High: $10,809 USD|Avg: $7,936 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 4$6,035 USD
Retailer 10$6,055 USD
Retailer 2$7,176 USD
Retailer 8$7,700 USD
Retailer 9$7,700 USD
Retailer 7$7,960 USD
Retailer 3$8,314 USD
Retailer 5$8,444 USD
Retailer 6$9,206 USD
MOH London$10,737 USD

32 data points across 10 retailers

9 retailers$6,035 USD to $10,737 USD

B+
Cheapest Retailer
-
$6,035 USD
B+
Retailer 2
-
$6,055 USD
View
B+
Retailer 3
-
$7,176 USD
£5,651 GBP
View
B
Retailer 4
-
$7,700 USD
View
B
Retailer 5
-
$7,700 USD
View
B+
Retailer 6
-
$7,960 USD
View
B+
Retailer 7
-
$8,314 USD
£6,546 GBP
View
Retailer 8
-
$8,444 USD
View
Price last confirmed 16 days ago
Most Expensive
B
MOH London
F3B0F60E8 · Oct 29
$10,737 USD
£8,454 GBP
View
8 more retailers have this diamond
Prices start from $6,035 USDSave up to $4,702 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
$6,035 USD