Round|Natural|GIA

1.30ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6542878509

Certificate GIA 6542878509

Diamond specifications and retailer prices

From $4,348 USD
£3,424 GBP
Save $3,465 USD (44%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $7,813 USD at MOH London
View at MOH London

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6542878509. Listed at 4 retailers, with prices from $4,348 to $7,813 at MOH London, a $3,465 spread on the same certified stone. 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

1.30
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6542878509
Dimensions6.90 × 6.95 × 4.33 mm
L/W Ratio1.01
Top View
6.90 mm6.95 mm1.30 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6542878509
Side View
Table 58.0%Crown 36°GirdlePavilion 40.8°CuletDepth 62.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $7,813 USD|Low: $4,316 USD|High: $7,898 USD|Avg: $5,299 USD|-0.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 1, 2026
Retailer 3$4,398 USD
Retailer 2$4,892 USD
Retailer 5$5,090 USD
Retailer 4$5,352 USD
Retailer 6$5,699 USD
MOH London$7,813 USD

33 data points across 6 retailers

4 retailers$4,348 USD to $7,813 USD

A
Cheapest Retailer
-
$4,348 USD
£3,424 GBP
A
Retailer 2
-
$4,892 USD
A$7,526 AUD
View
B+
Retailer 3
-
$5,699 USD
€5,428 EUR
View
Price last confirmed 103 days ago
Most Expensive
B
MOH London
8B161B52D · Oct 1
$7,813 USD
£6,152 GBP
View
3 more retailers have this diamond
Prices start from $4,348 USDSave up to $3,465 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.

A
1.30ct Round
$4,348 USD