CaratHunter
Plans
Round|Natural|GIA

1.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6561487499

Certificate GIA 6561487499

Diamond specifications and retailer prices

From $3,387 USD
As of October 31, 2026
Save $5,452 USD (62%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,839 USD at MOH London · As of October 26, 2026
View at MOH London

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6561487499. Listed at 19 retailers as of October 26, 2026, with prices from $3,387 to $8,839, a $5,452 spread on the same certified stone. MOH London lists it at $8,839. 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

1.51
Carat
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6561487499
Dimensions7.48 × 7.45 × 4.47 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
7.48 mm7.45 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561487499
Side View
Table 59.0%Crown 32.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 59.9%

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: Oct 31
Current: $8,839 USD|Low: $3,387 USD|High: $9,972 USD|Avg: $5,995 USD|-0.6%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 3$3,387 USD
Retailer 16$3,645 USD
Retailer 6$3,786 USD
Retailer 2$4,122 USD
Retailer 4$4,374 USD
Retailer 10$4,415 USD
Retailer 18$4,651 USD
Retailer 17$4,685 USD
Retailer 13$4,905 USD
Retailer 15$5,134 USD
Retailer 7$5,135 USD
Retailer 19$5,414 USD
Retailer 9$5,650 USD
Retailer 5$6,351 USD
Retailer 11$6,413 USD
Retailer 12$6,610 USD
Retailer 14$6,766 USD
Retailer 8$8,378 USD
MOH London$8,839 USD

22 data points across 19 retailers

19 retailers$3,387 USD to $8,839 USD

A
Cheapest Retailer
-
$3,387 USD
A
Retailer 2
-
$3,645 USD
View
A
Retailer 3
-
$3,786 USD
View
A
Retailer 4
-
$4,122 USD
HK$32,200 HKD
View
A
Retailer 5
-
$4,374 USD
View
Retailer 6
-
$4,415 USD
View
Price last confirmed 14 days ago
A
Retailer 7
-
$4,651 USD
View
A
Retailer 8
-
$4,685 USD
View
Final sale: no returns
A
Retailer 9
-
$4,905 USD
View
A
Retailer 10
-
$5,134 USD
£4,043 GBP
View
A
Retailer 11
-
$5,135 USD
SGD 6,939 SGD
View
A
Retailer 12
-
$5,414 USD
View
A
Retailer 13
-
$5,650 USD
View
B+
Retailer 14
-
$6,351 USD
View
B+
Retailer 15
-
$6,610 USD
View
B+
Retailer 16
-
$6,766 USD
£5,328 GBP
View
B
Retailer 17
-
$8,378 USD
View
Retailer 18
-
$8,464 USD
View
Price last confirmed 13 days ago
Most Expensive
B
MOH London
651FA8153 · Oct 26
$8,839 USD
£6,960 GBP
View
18 more retailers have this diamond
Prices start from $3,387 USDSave up to $5,452 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
1.51ct Round
$3,387 USD