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Round|Natural|GIA

1.51ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 7541811764

Certificate GIA 7541811764

Diamond specifications and retailer prices

From $6,117 USD
₹582,544 INR
As of October 28, 2026
Save $7,195 USD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $13,312 USD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7541811764. Listed at 14 retailers as of October 27, 2026, with prices from $6,117 to $13,312, a $7,195 spread on the same certified stone. NZ Jewellers lists it at $13,312. 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
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7541811764
Dimensions7.28 × 7.32 × 4.61 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Top View
7.28 mm7.32 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7541811764
Side View
Table 56.0%Crown 36°Girdle: ThinPavilion 41.2°Culet: NoneDepth 63.1%

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 28
Current: $13,312 USD|Low: $6,081 USD|High: $13,640 USD|Avg: $8,190 USD|-2.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 8$6,117 USD
Retailer 4$6,433 USD
Retailer 5$6,779 USD
Retailer 13$6,880 USD
Retailer 12$7,335 USD
Retailer 9$7,409 USD
Retailer 11$7,675 USD
Retailer 2$7,703 USD
Retailer 3$8,126 USD
Retailer 7$8,320 USD
Retailer 10$9,691 USD
Retailer 6$11,152 USD
NZ Jewellers$13,312 USD

26 data points across 13 retailers

14 retailers$6,117 USD to $13,312 USD

A
Cheapest Retailer
-
$6,117 USD
₹582,544 INR
A
Retailer 2
-
$6,264 USD
A$9,636 AUD
View
A
Retailer 3
-
$6,433 USD
View
Final sale: no returns
A
Retailer 4
-
$6,779 USD
View
A
Retailer 5
-
$6,880 USD
View
A
Retailer 6
-
$7,335 USD
View
A
Retailer 7
-
$7,409 USD
£5,834 GBP
View
A
Retailer 8
-
$7,675 USD
A$11,808 AUD
View
Price last confirmed 7 days ago
A
Retailer 9
-
$7,703 USD
£6,065 GBP
View
A
Retailer 10
-
$8,126 USD
View
A
Retailer 11
-
$8,320 USD
€7,924 EUR
View
B+
Retailer 12
-
$9,691 USD
ZAR 156,559 ZAR
View
B+
Retailer 13
-
$11,152 USD
£8,781 GBP
View
Most Expensive
B
NZ Jewellers
0b4a8bda-cb19-441c-9a07-5033c22d5226 · Oct 27
$13,312 USD
View
13 more retailers have this diamond
Prices start from $6,117 USDSave up to $7,195 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
$6,117 USD