CaratHunter
Plans
Marquise|Natural|GIA

1.51ct G SI1 Marquise Natural Diamond

ID • G/SI1 • GIA 6545876663

Certificate GIA 6545876663

Diamond specifications and retailer prices

From HK$83,129 HKD
$10,595 USD
As of November 1, 2026
Save HK$48,501 HKD (37%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$131,630 HKD at Cape Diamonds · As of October 31, 2026
View at Cape Diamonds

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545876663. Listed at 11 retailers as of October 31, 2026, with prices from HK$83,129 to HK$131,630, a HK$48,501 spread on the same certified stone. Cape Diamonds lists it at HK$131,630. 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
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.2°
Pavilion angle39.2°
OriginNatural
Grading LabGIA
CertificateGIA 6545876663
Dimensions11.47 × 6.07 × 3.73 mm
L/W Ratio1.89
Top View
11.47 mm6.07 mm1.51 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6545876663
Side View
Table 60.0%Crown 38.2°Girdle: THK-VTKPavilion 39.2°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$131,630 HKD|Low: HK$83,129 HKD|High: HK$131,630 HKD|Avg: HK$102,296 HKD|+3.1%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 10HK$83,129 HKD
Retailer 7HK$88,347 HKD
Retailer 4HK$96,910 HKD
Retailer 5HK$99,065 HKD
Retailer 8HK$99,120 HKD
Retailer 9HK$104,196 HKD
Retailer 11HK$104,196 HKD
Retailer 2HK$105,550 HKD
Retailer 6HK$106,878 HKD
Retailer 3HK$107,648 HKD
Cape DiamondsHK$131,630 HKD

42 data points across 11 retailers

11 retailersHK$83,129 HKD to HK$131,630 HKD

B+
Cheapest Retailer
-
HK$83,129 HKD
$10,595 USD
B
Retailer 2
-
HK$88,347 HKD
$11,260 USD
View
B+
Retailer 3
-
HK$96,910 HKD
£9,725 GBP
View
B
Retailer 4
-
HK$99,065 HKD
$12,626 USD
View
B
Retailer 5
-
HK$99,120 HKD
$12,633 USD
View
B
Retailer 6
-
HK$104,196 HKD
$13,280 USD
View
B
Retailer 7
-
HK$104,196 HKD
$13,280 USD
View
B
Retailer 8
-
HK$105,550 HKD
€12,812 EUR
View
B
Retailer 9
-
HK$106,878 HKD
$13,622 USD
View
B
Retailer 10
-
HK$107,648 HKD
$13,720 USD
View
Most Expensive
B
Cape Diamonds
cert_6545876663 · Oct 31
HK$131,630 HKD
ZAR 271,026 ZAR
View
10 more retailers have this diamond
Prices start from HK$83,129 HKDSave up to HK$48,501 HKD

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+
1.51ct Marquise
HK$83,129 HKD