Round|Natural|GIA

5.05ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6555739940

Certificate GIA 6555739940

Diamond specifications and retailer prices

From $127,436 USD
£100,343 GBP
As of November 1, 2026
Save $76,778 USD (38%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $204,213 USD at MOH London · As of November 1, 2026
View at MOH London

About this 5.05ct natural round diamond

This 5.05ct natural round sits in the over five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555739940. Listed at 15 retailers as of November 1, 2026, with prices from $127,436 to $204,213, a $76,778 spread on the same certified stone. MOH London lists it at $204,213. 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

5.05
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6555739940
Dimensions10.82 × 10.91 × 6.81 mm
L/W Ratio1.01
Girdle conditionFaceted
Key to symbols
Cloud, Crystal, Needle, Feather
Top View
10.82 mm10.91 mm5.05 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555739940
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $204,213 USD|Low: $125,973 USD|High: $217,044 USD|Avg: $148,974 USD|-5.8%
MOH London
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
November 1, 2026
Retailer 7$126,945 USD
Retailer 6$127,363 USD
Retailer 9$127,436 USD
Retailer 15$129,898 USD
Retailer 11$134,084 USD
Retailer 13$134,856 USD
Retailer 3$138,927 USD
Retailer 14$142,090 USD
Retailer 10$144,332 USD
Retailer 12$153,349 USD
Retailer 2$157,953 USD
Retailer 8$158,212 USD
Retailer 4$159,483 USD
Retailer 5$165,617 USD
MOH London$204,213 USD

37 data points across 15 retailers

15 retailers$127,436 USD to $204,213 USD

Retailer 1
-
$126,945 USD
A$195,299 AUD
Price last confirmed 28 days ago
Retailer 2
-
$127,363 USD
SGD 172,112 SGD
View
Price last confirmed 22 days ago
A
Retailer 3
-
$127,436 USD
£100,343 GBP
View
B+
Retailer 4
-
$129,898 USD
View
Final sale: no returns
B+
Retailer 5
-
$134,084 USD
View
B+
Retailer 6
-
$134,856 USD
SGD 182,238 SGD
View
B+
Retailer 7
-
$138,927 USD
View
B+
Retailer 8
-
$142,090 USD
View
Retailer 9
-
$144,332 USD
View
Price last confirmed 7 days ago
B
Retailer 10
-
$153,349 USD
View
B+
Retailer 11
-
$157,953 USD
€150,431 EUR
View
B+
Retailer 12
-
$158,212 USD
ZAR 2,555,928 ZAR
View
B+
Retailer 13
-
$159,483 USD
View
B+
Retailer 14
-
$165,617 USD
View
Most Expensive
B
MOH London
5EE0C1874 · Nov 1
$204,213 USD
£160,798 GBP
View
14 more retailers have this diamond
Prices start from $127,436 USDSave up to $76,778 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
5.05ct Round
$127,436 USD