Round|Natural|GIA

1.55ct I SI2 Round Natural Diamond

VG • I/SI2 • GIA 1133038001

Certificate GIA 1133038001

Diamond specifications and retailer prices

From $7,607 USD
£5,990 GBP
As of October 31, 2026
Save $3,769 USD (33%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $11,375 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 very-good cut grade and certified by GIA 1133038001. Listed at 4 retailers as of October 29, 2026, with prices from $7,607 to $11,375, a $3,769 spread on the same certified stone. MOH London lists it at $11,375. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
I
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1133038001
Dimensions7.35 × 7.37 × 4.60 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
7.35 mm7.37 mm1.55 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1133038001
Side View
Table 57.0%Crown 36°Girdle: VTN-STKPavilion 40.6°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: $11,375 USD|Low: $6,371 USD|High: $11,450 USD|Avg: $8,594 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 5$6,371 USD
Retailer 2$7,607 USD
Retailer 3$8,871 USD
Retailer 4$8,944 USD
MOH London$11,375 USD

37 data points across 5 retailers

4 retailers$7,607 USD to $11,375 USD

B+
Cheapest Retailer
-
$7,607 USD
£5,990 GBP
B
Retailer 2
-
$8,871 USD
€8,449 EUR
View
Retailer 3
-
$8,944 USD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
945A938C1 · Oct 29
$11,375 USD
£8,957 GBP
View
3 more retailers have this diamond
Prices start from $7,607 USDSave up to $3,769 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
$7,607 USD